As an important component of control field, hydraulic serve position control system with big power, rapid reflection and high accuracy characteristics, is being used widely in many industrial fields.
电液位置伺服系统是控制领域中一个重要的组成部分，具有功率大、响应快、精度高等特点，在国民经济的各个领域得到了广泛的应用。
Environmental-geological problems are the "by-product" in the process of rapid urbanization and a reflection of disharmony among man, geo-environment and ecosystem in the pan-metropolitan trend.
环境地质问题是快速城市化进程的“副产物”、泛都市化趋势下人-地-生相互关系失调的反映。
A very thin and very agile person may, by observing his reflection in a rapid sequence of longitudinal strips, obtain a fairly accurate conception of his looks.
一个非常瘦小灵活的人，从一连串纵的片段的映像里，也许可以对自己的容貌得到一个大致不差的概念。
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