标量守恒定律 conservation law: 生物保护法; 守恒律; 守恒率; 资源保护法;守恒定律conservation, law of: 守恒定律law of conservation: 守恒定律angular momentum conservation law: 角动量守恒定律; 角动量守恒律angular monentum conservation law: 动量矩守恒定律下载手机词典可随时随地查词查翻译