“four-ball test machine”的概念、定义、翻译、参考文献-科学参考

单词	four-ball test machine
释义	four-ball test machine Encyclopedia 工学摩擦学试验释 four-ball test machine四球试验机以一个钢球在压力作用下，相对三个同尺寸水平固定钢球旋转摩擦的摩擦试验机。简称四球机。
随便看	Wu Zhifan Wu Zhiguang Wuzhi Shan Wuzhishan pig Wuzhishan Shi Wuzhi Studio Qin Tablature Wuzhi Xian Wu Zhiying Wu Zhizhong Wu Zhongchao Wu Zhonghua Wu Zhonglun Wuzhong poetry school Wuzhong Qu Wuzhong school of ci-poetry Wuzhong Shi Wuzhong Tribe Wu Zhongwei Wu Zhongxian Wu Zhongxing Wu Zhonɡhuɑ Wu Zhonɡwei Wuzhou Kiln Wuzhou kiln Wuzhou master plan

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