Action cameras are used to capture extreme action sports or activities. They can capture highspeed and high-quality images.

关键词：操作相机；捕捉极端；行动运动；活动；动作摄像机

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A drive is an adjustable speed device that regulates the speed and direction of motors. Adjustment is done by varying the current flow through the motor. Drives are classified into two broad categories based on the type of current: AC drives and DC drives. AC drives are used to control AC electric motors, while DC drives are used for DC electric motors. Drives are widely used in manufacturing industries to regulate and control electrical devices such as fans,conveyors, machine spindles, and pumps. AC drives are widely used in process industries to increase the energy efficiency of motors.

关键词：驱动；调节电机；速度；方向；调速装置；交流驱动器；直流驱动器

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Over the six months under review, the Asia-Pacific insurance industry continued to face slower economic growth, a low interest rate environment and regulatory issues. However,the continuing rise in the number of middle class and high net worth individuals, and liberalization of trade barriers were highly favorable for the Asian insurance market.Demand for health insurance continued to grow in 2013,due to the ageing population, rising consumer affluence and strain on public resources.

关键词：亚太保险；寿险；房产

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关键词：整形外科；美国；市场分析；2018

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The Monthly Energy Review (MER) is the U.S. Energy Information Administration’s (EIA) primary report of recent and historical energy statistics. Included are statistics on total energy production,consumption, trade, and energy prices; overviews of petroleum, natural gas, coal, electricity,nuclear energy, renewable energy, and international petroleum; carbon dioxide emissions; and data unit conversions. 

关键词：能源；煤炭；电力；核能；石油

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关键词：混合动力车；美国；市场分析；2018

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In 2008, the National Renewable Energy Laboratory (NREL), under contract to the US Department of Energy (DOE), conducted a manufacturing readiness assessment (MRA) of fuel cell systems and fuel cell stacks for back-up power and material handling applications (MHE). To facilitate the MRA, manufacturing readiness levels (MRL) were defined that were based on the Technology Readiness Levels previously established by the US Department of Energy (DOE). NREL assessed the extensive existing hierarchy of MRLs developed by Department of Defense (DoD) and other Federal entities, and developed a MRL scale adapted to the needs of the Fuel Cell Technologies Program (FCTP) and to the status of the fuel cell industry. The MRL ranking of a fuel cell manufacturing facility increases as the manufacturing capability transitions from laboratory prototype development through Low Rate Initial Production to Full Rate Production. DOE can use MRLs to address the economic and institutional risks associated with a ramp-up in polymer electrolyte membrane (PEM) fuel cell production. In 2010, NREL updated this assessment, including additional manufacturers, an assessment of market developments since the original report, and a comparison of MRLs between 2008 and 2010.

关键词：燃料电池；后备电源;；聚合物；制氢

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Dimming mirrors were initially introduced in fighter aircraft to reduce brightness. Gentex was credited with the first electromechanical dimming rearview mirror in 1982. Auto dimming mirrors reduce annoying glare at night that can impair vision.

关键词：防眩目后视镜；战斗机；降低亮度；汽车自动调光镜

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Clean coal refers to the process of reducing carbon emissions and other harmful pollutants that arise from the burning of coal for power generation to the minimum possible level. SC, USC, and IGCC technologies are clean coal technologies that are widely used for setting up new-build coal-fired power plants. The more sophisticated the technology, the higher the steam pressure and temperature requirement is for operating the plant. As a result, the thermal efficiencies improve with the usage of more sophisticated technology. As well as these three technologies, CCS is also an upcoming technology, which is capable of reducing carbon emissions drastically by 80-90 percent. This technology is used in conjunction with SC, USC or IGCC plants.

关键词：清洁煤；减少；碳排放；源于；燃煤发电

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Endometriosis is a common feminine health condition where endometrial tissue, which is usually found inside the lining of the uterus, appears and grows outside the uterine cavity. Endometriosis can occur in the fallopian tubes, ovaries, the outer surface of the uterus, the pelvic cavity, vagina, cervix, and bladder. Endometriosis has, although rarely, been reported in other parts of the body such as the lungs, brain, and the skin. The most common symptoms associated with endometriosis are pelvic pain, dysmenorrhea, excessive bleeding, and lower abdominal pain. Less common symptoms of endometriosis are rectal bleeding and hematuria. The detection of endometriosis is difficult for the physician owing to the common symptoms associated with it. Endometriosis can be diagnosed by laparoscopy, ultrasound, pelvic examination, and biopsy of the inner lining of the uterus. For a biopsy, tissue from the inner lining of the uterus of the patient is taken and tested using biomarkers for the presence of endometriosis. Endometriosis is a noncurable disease and might relapse after the primary treatment. Currently, the treatment options for endometriosis include the usage of analgesics for symptomatic relief and hormone therapy is used to control the disease.

关键词：子宫内膜异位症；女性；健康状况；输卵管；卵巢

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