1～ 8 月，八大工程机械产品累计总销量为 50.72 万台，同比增速为 46.04%；挖掘机市场延续爆发式增长势头，销量持续大幅增长；市场需求持续反弹，挖掘机产量保持高速增长态势；进口市场稳步回升，零部件进口增幅高于进口总额增幅；出口市场大幅好转，出口额同比增长 13.1%；行业经营效益持续好转，利润总额大幅增长；应收账款余额持续小幅下降，回款风险需警惕；行业经营效益持续好转，利润总额大幅增长。

An automotive camless engine is defined as an engine configuration wherein the poppet valves are operated using pneumatic, electrohydraulic, or electromagnetic actuator systems instead of conventional cams. The intake or exhaust valves are operated using the camless arrangement of the camshaft, which incorporates the use of springs or other means. This type of engine configuration has recently been developed by engine designers and developers for achieving optimum performance and fuel efficiency in addition to reduced carbon emissions.

Electric motor is a machine that converts electrical energy into mechanical energy through the interaction of magnetic field with current. The motor mainly consists of two parts: a rotor and a stator. The motors can be categorized into direct current (DC) motor and alternating current (AC) motor based on the type of current used by the motor. AC motors are classified into synchronous or asynchronous, and DC motors are classified into brushed and brushless.

Oxygen sensor, also known as a lambda sensor, is an electronic device used to gauge the amount of unburned oxygen left in the exhaust after combustion. It is mainly used in engines having fuel injection systems.The global motorcycle oxygen sensor market is segmented on the basis of application into entry-, mid- and full-size segments and into APAC, Europe, and the Americas on the basis of geography.

Projector screens refer to surfaces, which, with the help of a support structure installation, are used for projecting images and digital contents. These screens come in two variants that are flat and curved. Flat projection screens have a higher adoption than curved screens as curved screens require accurate geometrical image production.The report covers the present scenario and the growth prospects of the globalprojector screen market for 2017-2021. It explains the market with a detailed forecast of its revenue and shipment and segments the market based on types,price ranges, applications, screen fabrics, and geography.The market is fragmented with the presence of numerous small and large vendors.The report only lists key vendors in the market; it does not present the market share of all the vendors. In addition, the report discusses the major drivers influencing the growth of the global projector screen market, outlines the challenges faced by vendors and the market as a whole, and the key trends emerging in the market.

3D printing is a technique in which a scanned or digitally designed object is formed into a three-dimensional solid using an additive process. In this process, metal is applied in successive layers with very less wastage. 3D printing products are built from materials that are alternatives to conventional plastic and metals. The global metal-based 3D printing market will grow at a rapid rate during the forecast period.The growth is attributable to the emerging demand from the aerospace and healthcare industry.3D printing metals help in achieving complex geometries, extreme requirements,and weight reduction for the aerospace industry. Fuel nozzles and guide vanes arebeing produced using the technique.

Marine power systems include both marine propulsion engines and marine auxiliary engines.The first kind of mechanical marine propulsion engines were steam engines, which came into inception during the 19th century. From the 20th century onward, steam engines have been increasingly replaced by two-stroke and four-stroke diesel engines and gas turbine engines. The use of liquefied natural gas (LNG) as a fuel in marine propulsion engines is gaining popularity because of the low-emission advantages that they offer over diesel.The global marine propulsion engine market is dependent on the performance of the global shipbuilding industry, as marine propulsion engines are essential for waterborne transport such as boats, cruises, merchant and passenger ships, tankers, floating,production, storage, and offloading (FPSO) vessels, and bulk carriers to move on water. Therefore, a greater demand to build new ships would lead to a higher demand for marine propulsion engines. Many countries lack the essential natural resources to produce various consumer goods due to which these nations depend heavily on a reliable shipping industry to carry out a trade on a global scale. There has been an increasing demand to increase the capacity of the diesel marine engines installed in large cargo ships.

Supercapacitors have higher capacitance values than any other capacitors and can store almost 100 times more energy per unit volume or mass when compared to electrolytic capacitors.To calculate the market size, the report considers the revenue generated from the sales of supercapacitors across various sectors globally. The report segments theglobal supercapacitor market based on the following:By end-user: Consumer electronics sector, automotive sector, industrial sector,energy sector, and others.

A robotic lawn mower is a battery-powered autonomous robot, which is increasingly being employed for the maintenance of grass in lawns and gardens. Apart from cutting grass, it also has the ability to spray fertilizers and insecticides.For market sizing, the period 2017-2021 has been considered, keeping 2016 as the base year. The report does not include products covering areas over 10,500 square meters.Based on end-users, the market has been segmented into consumer and commercial segments.The report also provides a segmentation based on the lawn areas covered by therobotic lawn mowers, including small-sized lawns (up to 800 square meters),medium-sized lawns (between 800 and 1,500 square meters), and large-sized lawns (between 1,500 and 10,500 square meters).

The global four-wheelers industry has two segments: passenger cars and commercial vehicles segments. Passenger cars are used for personal transportation, while commercial vehicles are used for commercial purposes. Both these segments have contrasting market dynamics and a different customer behavior and value chain. The passenger cars segment is experiencing steady growth because of the growing preference for personal vehicles globally. The commercial vehicle segment is witnessing high volume growth, contributed by countries such as the US and China. This growth can be attributed to the high load barring capacity and comfort offered by these vehicles. The global four-wheelers industry is highly capital-intensive in nature and is poised with many technological innovations. We expect the global four-wheelers market to grow at a CAGR of 3.68% during the forecast period.

OLEDs are made of organic (carbon-based) materials that emit light when electricity is applied to them. OLEDs are used for lighting and displays.OLEDs are used in the mass production of active matrix organic light-emitting diode(AMOLED) panels, including the red, green, and blue (RGB) light-emitting materials.The materials of the common layers include hole transport layer (HTL), electron transport layer (ETL), and a capping layer (CPL), along with other functional materials.

In a string inverter, photovoltaic (PV) modules are connected in strings and then wired to a central inverter. An inverter is a device that converts direct current (DC) into alternate current (AC) and is largely used in the solar and other renewable energy industries, such as small wind power plants.

Space heating accounts for a large amount of energy consumption for residential consumers. It consumes more energy than other residential activities such as cooking,refrigeration, and lighting. People are increasingly investing on space heaters as they complement the centralized heating system and can be used to heat small areas. Cold climatic conditions mainly influence the requirement for heating devices such as space heaters. This requirement varies from region to region based on variations in climatic conditions, which primarily depend on temperature and precipitation.

Air filter is an essential component of a heating, ventilation, and air conditioning (HVAC) system as it removes the particulate contaminants from the supplied air, which would be harmful to the occupants of the vehicle. It also forms an essential component of air moving devices, such as fan coils, terminal units, and air handlers, as it removes the dirt that causes the blockage of the coil and imbalance in the fan wheels.

Overhead cables are used for transmission and distribution of electric power. These cables are installed overhead between electric poles. We have considered overhead cables used in power applications.The report covers the present scenario and growth prospects of the global overhead cable market for 2017-2021. The market size is calculated based on the demand for overhead cables. The market has been segmented based on voltage and geography.

A diesel engine is an internal combustion engine (ICE) in which air is compressed inside the cylinder to ignite the fuel. Two main types of diesel engines are available in the market. They are two-stroke and four-stroke engines.

Semiconductor packaging and assembly is carried out to provide extra protection to wafers or substrates. The components are first assembled layer on a layer using wires that can conduct electricity. The unpackaged chip is then put into a casing made up of materials, such as metal, plastic, glass, or ceramic, and containing one or more semiconductor electronic components.

Selective Complaint Assembly Robot Arm (SCARA) is a parallel-axis jointed robot,which is rigid at Z-axes or vertical scale. This robot can move horizontally with its joint elbow, and function like a human arm.SCARA robots are very useful for high-precision, high-speed operations, and confined workspaces.SCARA robots are significantly used for industry applications such as pick-and-place,assembly, logistics, welding, and palletizing.

The auto industry is increasingly being driven by changing consumer needs to accommodate convergence of connectivity and electrification. Automakers are striving to develop smart and energy efficient cars. As a result, recent vehicles are enabled with electronic features, requiring to upgrade the alternator system for efficient allocation of power. Automotive alternators are used to charge the automotive battery, which is supplying power to the electrical and electronic components of a vehicle. The electronic components include internal lighting, dashboard controls, anti-lock braking systems, air conditioning, and external lighting.

2017 年 9 月 28 日，工信等发布《乘用车企业平均燃料消耗量与新能源汽车积分并行管理办法》，双积分制度终于落地。该政策是我国发布的众多新能源汽车政策中最重要的政策之一，具有里程碑意义，开创性的引领全球新能源汽车市场。