stretching vibration

• 伸缩振动

stretching vibration的用法和样例：

例句

1. The frequency shift of carbonyl stretching bands has been found to be sensitive to the change of molecular conformation,inter and intramolecular interactions.
   在红外光谱中羰基伸缩振动的变化可以看作是液晶分子相态转变的标志。