机械设备行业：2025年中国磁悬浮压缩机行业概览（精华版）

Laser printers use the principle of electrophotography or electrostatic charges for printing. Laser light is used for inducing charges to facilitate printing. The laser light induces charges on the printer drum, which is opposite to the charge of toner inks in the printer. With opposite charge polarities, where the drum is positively charged, and the toner is negatively charged, the ink in the toner gets attracted to the drum. The ink stuck on the drum is in accordance with the image or data provided to the printer. The negatively charged toner ink, which sticks in the format of the image as provided, gets attracted to the positively charged paper. This creates a replica of the original image provided to the printer.

LED lighting is based on fixed light source installations, which deliver a practical or aesthetic lighting effect. The general lighting industry is moving toward energy-efficient lighting, leading to technological innovations in the market. LED lighting solutions provide advantages such as low voltage and current requirements, high reliability, low radiated heat, negligible emission of ultraviolet (UV) rays, and a longer lifespan than conventional lighting sources. As a result, the adoption and penetration of LEDs in the general lighting industry are rising.

Linear actuators are used to convert energy (power from air, electricity, or liquid) into linear motion. These actuators convert rotary motion into linear motion by means of a linear motor, a belt, or a screw drive. The linear actuators that convert energy from air into linear motion are called pneumatic linear actuators; the linear actuators that convert energy from the fluid into linear motion are called hydraulic linear actuators, and the linear actuators that convert energy from electricity to linear motion are referred to as electric linear actuators.

A mountain bicycle, generally known as a mountain bike, is specifically designed for cycling off-road. It can handle rough terrain better and is frequently used in hilly areas with steep slopes, hard rocks, loose dirt, and muddy or grassy routes. The mountain bikes are built to perform better and last longer on difficult terrain. They typically have a front or full suspension, stronger wheels, big knobby tires, stronger brakes, and lower gear ratios for climbing steep grades. Mountain trails, fire roads, single tracks, and other unpaved surfaces are where mountain bikes or mountain bicycles are commonly ridden.

A multi-functional printer (MFP) is a system that comprises the functionality of a printer, scanner, fax, and copier in a single system. Some MFPs do not have fax functionality, which is not considered a norm for MFPs, as it is no longer a popular mode of document exchange.

Mechanical connectors encompass the manufacturing, distribution, and sale of various types of connectors used for mechanical connections in different applications. Mechanical connectors are devices or components designed to join or connect two or more mechanical parts together, providing a secure and reliable connection.

An offshore wind cable laying vessel is a specialized ship designed to install and bury subsea power cables that connect offshore wind turbines to onshore grids. Equipped with advanced positioning systems, cable handling equipment, and trenching tools, these vessels ensure precise cable placement and protection on the seabed. They are crucial for efficient offshore wind farm operations, supporting power transmission in both shallow and deep waters.

Motorcycle rider accessories are essential items that enhance safety, comfort, and convenience for riders. A comprehensive range of motorcycle rider accessories is used for different driving conditions, including helmets, apparel, and other accessories. These motorcycle rider accessories are also used by commuters, motorbike sports participants, professional bikers, and motorbike touring enthusiasts

A network interface card (NIC) is a hardware component that allows a computer to connect to a network. It is a circuit board installed in a computer that provides the computer with a dedicated network connection. It is sometimes referred to as a network interface controller, a network adapter, or a LAN adapter

Upstream oil and gas operations and production aid in the discovery of deposits, drilling of wells, and the extraction of raw materials from the ground. Companies that extract or produce raw materials oversee upstream oil and gas production. Drilling, exploration, well interferences, well completion, abandonment, and production are all examples of upstream operations that employ oil and gas equipment.

A casing spool is an equipment that is used in oil and gas well drilling and completion processes. A casing spool is a wellhead or blow-out preventer component that is used to control the wellhead pressure and to support and seal the upper part of the casing string.

A music synthesizer is an electronic musical instrument that generates audio signals to imitate traditional musical instruments such as piano, flute, vocals, and others. The electric signals in a synthesizer or synths are converted into sound with the help of amplifiers and speakers. These instruments are mostly played in conjunction with a keyboard. A synthesizer can also be controlled using musical instruments, such as guitars, sequencers, drums, and fingerboards.

A non-mydriatic handheld fundus camera is a portable diagnostic device used to capture high-resolution images of the retina without the need for pupil dilation (mydriasis). It is commonly used by ophthalmologists and healthcare professionals for non-invasive retinal screenings, allowing for the early detection of eye diseases such as diabetic retinopathy, glaucoma, and age-related macular degeneration. The compact design of the camera makes it ideal for use in various healthcare settings, including hospitals, clinics, and ambulatory surgical centers.

A metal sawing machine is a device for cutting up bars of metal or for cutting out shapes in plates of raw materials (metals). The cutting tools in sawing machines may be thin metallic disks with teeth on the edges, thin metal blades, or flexible bands with teeth on one edge, or thin grinding wheels.

Military drones refer to unmanned aerial vehicles (UAVs) that are specifically used for military purposes such as border surveillance, battle damage management, combat operations, communication, delivery, and anti￾terrorism weaponry.

Leather tanning machinery refers to a type of industrial equipment that is used in the tanning of animal hides and skins into leather. The importance of leather tanning machinery depends on its ability to effectively and efficiently convert raw animal hides into usable leather products.

Medical device testing refers to the process of evaluating and verifying the safety, functionality, and performance of medical devices to ensure they meet regulatory standards and industry requirements. This involves various tests, such as biocompatibility testing, electrical safety testing, software validation, and sterilization validation, to confirm that the device is safe for use, performs as intended, and complies with local and international regulations before it reaches the market.

A mirrorless camera is a type of digital camera that does not require a reflex mirror to reflect images. Mirrorless cameras, therefore, do not have mirrors and optical viewfinders; instead, they use electronic viewfinders (EVF). These cameras are available with fixed lenses and interchangeable lens features. A mirrorless camera is generally smaller than a digital single-lens reflex (DSLR) camera. Mirrorless cameras are known in industry terms, such as compact system cameras (CSC), hybrid cameras, mirrorless interchangeable-lens cameras (MILC), and non-reflex cameras.

汽车行业：智驾已是“必答题_，低阶配置平权与高阶功能落地共振－智能驾驶专题