GbEng
他的火车头模型缺了一个零件. He lost one of the pieces of his model engine.
这台机器由二十个零件组成。 This engine is made up of 20 parts.
扇形体形状似四分之一圆圈的机器零件或其他机械设备 A machine part or other mechanical device that is shaped like a quarter circle.
人类，是一堆可以随意拆卸的铅管零件的巧妙装配。 A human being is an ingenious assembly of portable plumbing.
商店为了迎合“自己动手”的狂热心理，为消费者提供可以在家里组装的零件。 Shops cater for the do-it- yourself craze by offering consumers bits and pieces which they can assemble at home.
每个零件在装配前都经过仔细检查. Each component is carefully checked before assembly.
空隙，间隙允许自由运动所介入的空间或距离，如在机器零件之间的 An intervening space or distance allowing free play, as between machine parts.