crankshaft balancer曲柄: crank轴: axle; shaft平衡: balance; equilibrium器: implement; utensil; ware曲柄轴平衡块: jack shaft counterweight下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:曲柄轴平衡器，即可在微信中查询翻译
