介绍了我国铁路引进的欧洲和日本共3种动车组密接式钩缓装置的主要技术参数，并对这3种钩缓装置的总体设计、车钩和缓冲器的技术特点进行了比较分析。
Described are the main technical parameters of 3 types of tight-lock draft gears for multiple units in Europe and Japan, which are going to be imported by the Railway in our country.
熟悉铁路机械金属工艺，如车钩、缓冲器、车体、转向架等铁路机车车辆设备的生产、制造与检修。
Familiar with railway mechanical metal process, such as production, manufacture and repair of the coupler, buffer, car-body, bogies and other railway equipments.
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