An air handling unit is a device used to filter, condition, and circulate air as part of HVAC equipment. An air handling unit system includes a large insulated metal box that comprises a fan, heating and cooling elements, sound attenuators, filter racks, and dampers. Air handlers are connected to a ductwork system through which conditioned air is distributed across the building and returned to the air handler. It caters to various needs such as heating, cooling, or both, depending on the specific duty and weather conditions. The capacity, size, and complexity of air handling unit systems vary considerably depending on the job they are designed to perform.

关键词：空气处理单元；过滤；条件；循环；装置设备；管道系统

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Anti-counterfeit packaging is the process of providing secure packaging to products to reduce counterfeiting or imitation, thereby improving the safety of packaged goods.

关键词：包装安全；防伪包装；包装业

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关键词：儿童用品；出口；国际标准

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In general, the terms 'small arms' and 'light weapons' are used for small and lightweight weapons that can be operated by one person. They usually include revolvers, pistols, rifles, submachine guns, light machine guns, heavy machine guns, grenade launchers, portable anti-aircraft guns, portable anti-tank guns, and mortars.

关键词：小型武器；轻武器；便携式防空炮， 便携式；反坦克炮；迫击炮

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Sunglasses are worn to avoid sunlight and high-visibility light that can damage or cause discomfort to the eyes. Continuous exposure to harmful UV radiations can damage the eyes or retina. Hence, sunglasses with a high EPF protect the eyes, especially from the rising effects of global warming. Sunglasses can be without prescription (called Plano) or with prescriptio (called Rx). The lenses used in sunglasses are usually made of polycarbonate, ADC, nylon, or glass. The frames are usually made of nylon, zyl, plastic, and metal. There are many styles and varieties of sunglasses available in the market. Some of the most popular are aviators, wayfarers, mirrored, and teashades.

关键词：太阳镜磨损；避免阳光；保护眼睛

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关键词：制造业；全球；思维

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Bioactive materials are part of the biomaterial family and are increasingly becoming popular because of their ability to react with body fluids and tissues without having a negative impact on human health. They are extensively used as tissue replacement and tissue repair mater and are mainly used in surgical procedures. Bioactive materials are manufactured from materials such as ceramics, glass, glass-ceramics, and composites. Bioactive materials are mainly used in the Medical sector, followed by the Dentistry and Cosmetics sectors. Bioactive materials are commercially available in forms such as powders and nanopowders, granules, and injectable products and coatings.

关键词：生物活性物质；生物材料家族；组织替代；组织修复材料；外科手术过程

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A hydraulic cylinder is a mechanical actuator that produces linear motion and unidirectional force by using pressurized hydraulic fluid. It converts the energy stored in the hydraulic fluid into a force, allowing linear motion of the cylinder. A hydraulic cylinder consists of a cylinder barrel, cylinder cap, piston rod, piston, cylinder base, rod gland, cushions, seal, and cylinder base connection. Hydraulic cylinders are classified into two types according to their function: singleacting cylinders and double-acting cylinders. In single-acting cylinders, fluid is pressurized from one side of the cylinder during extraction and expansion, while in double-acting cylinders fluid is pressurized from both sides. Double-acting cylinders are further divided into two types: single rod end cylinders and double rod end cylinders. Plunger cylinders, telescoping cylinders, cable cylinders, and diaphragm cylinders are some of the hydraulic cylinders available in the Global Hydraulic Cylinders market.

关键词：液压缸；产生线性运动；单向机械致动器；加压；液压流体

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China announced earlier this year it would ban new projects in industries including steel and cement until 2017.

关键词：水泥；钢；行业前景

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Nanomedicine is a relatively new field of science and technology. By interacting with biomolecules, therefore at nanoscale, nanotechnology opens up a vast field of research and application. Current and potential applications of nanotechnology in medicine range from research involving diagnostic devices, drug delivery vehicles to enhanced gene therapy and tissue engineering procedures. Its advantage over conventional medicine lies on its size. Operating at nanoscale allows to exploit physical properties different from those observed at microscale such as the volume/surface ratio. This allows drugs of nanosize be used in lower concentration and has an earlier onset of therapeutic action. It also provides materials for controlled drug delivery by directing carriers to a specific location. Inorganic nanomedicine is likely to remain one of the most prolific fields of nanomedicine, which refers to the use of inorganic or hybrid (inorganic-inorganic or inorganic-organic) nanomaterials (ESfMs) and nanoparticles (INPs) to achieve innovative medical advances for body parts implantation, drug and gene discovery and delivery, discovery of biomarkers, and molecular diagnostics. Among the most promising INMs being developed are metal, silica, dendrimers, organic-inorganic hybrids, ceramics (e.g. ZrO_2, TiO_2, Al_2O_3, etc.) and bioinorganic hybrids. Metal NP contrast agents enhance magnetic resonance imaging and ultrasound results in biomedical applications of in vivo imaging. Hollow and porous INMs have been exploited for drug and gene delivery, diagnostic imaging, and photothermal therapy. Biomolecular inorganic nanohybrids and nanostructured biomaterials have been exploited for targeted imaging and therapy, drug and gene delivery, and regenerative medicine. Potential uses for fluorescent quantum dots (QDs) include cell labeling, biosensing, in vivo imaging, bimodal magnetic-luminescent imaging, and diagnostics. Biocompatible QD conjugates have been used successfully for sentinel lymph node mapping, tumor targeting, tumor angiogenesis imaging, and metastasis cell tracking. This article outlines present developments and future prospects for the use of Ti-based NPs and NMs in experimental in vivo and in vitro studies and in engineering nanodevices and biosensors for clinical and investigative use in diagnosis and therapy in diverse fields of medical sciences, such as oncology, infection control, orthopedics, dentistry, dermatology, genetics, cardiology, ophthalmology, etc. Toxicological considerations of these INPs and INMs are also discussed.

关键词：纳米技术;无机纳米钛(Ti),二氧化钛(TiO_2);无机NPs(输入)

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