transformation by reciprocal direction倒: reverse方向: direction; orientation变换: vary; alternate; commutation ...倒方向变换, 逆向变换: transformation by reciprocal direction急上升方向变换: chandelle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:倒方向变换，即可在微信中查询翻译
