辐射是一种既不需要介质也不需要与辐射体接触而进行的能量传输形式。
Radiation is a form of energy transfer that does not require a supporting medium nor contract with radiating body.
该化合物制备方法简单环保，反应时间短，反应温度温和，反应不需要介质。
The method for preparing the compound is simple and environment-friendly, has short reaction time and mild reaction temperature without medium in the reaction.
这可能是创建系统备份的一种灵活方法，而且不需要物理介质。
This can be a flexible way to make system backups without the need for physical media.
应用推荐