conservation; conserve◇守恒定律 conservation law; 守恒力 conservative force保守;守恒: conservation不守恒: non-conservation◇不守恒性 [物理学] non-conservation墒守恒: entropy conservation守恒场: co ervation field; conservation field守恒力: conservation force; conservative force下载手机词典可随时随地查词查翻译