这种双重作用的牙膏，含有木糖醇和小苏打，能 清除牙齿表层的污垢和污色。
Dual-action toothpaste with Xylitol and baking soda to remove stains and surface discolouration from teeth.
一氧化氮（NO）是一种具有双重作用的信息分子，对心血管系统起着重要的调节作用。
Nitric oxide(NO) is an information molecular possessed of double effects. It plays very important roles in the cardiovascular system.
这种现象的出现是学校管理体系和社会环境双重作用的结果。
Such phenomenon is the result of dual function of the college management system and the social environment.
应用推荐