alternate motionalternating motion交变: alternation; alternating; al ...运动: arrange things or get things ...交变运动（熔接）: alternating motion等变运动: uniform varying motion流变运动学: rheological kinematics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:交变运动，即可在微信中查询翻译
