双语例句权威例句
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The charging sphere and column are mounted on a heavy cast-metal base along with a discharge sphere with a movable arm.
此蓄垫球及盒装置在一很重的金属基座上，并有一可移动的放电球。
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A large instrument having a fixed and a movable arm on a graduated stock, used for measuring the diameters of logs and similar objects.
测径器一种大仪器，在一刻度盘上有固定且可动的测脚，用于测量圆木和类似物体的直径。
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The device comprises a tripod, a movable arm, a skip bucket, a water tank, a sweeping brush, a spring, a conduit pipe, a sprinkling bar, etc.
该装置由三角架、活动臂、翻斗、水箱、扫地刷、弹簧、输水管、洒水管等零部件组成。
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