introduction of gas造句

例句与造句

1. the introduction of gas chromatography analysis method for jasminaldehyde
   茉莉醛的气相色谱定量分析方法介绍
2. to begin with, a brief introduction of gas-dynamic laser is given, and the formula for calculating the starting pressure ratio is derived
   首先简要介绍了气动co2激光器的基本原理和工作过程,推导了激光器起动压比的计算公式。
3. It's difficult to find introduction of gas in a sentence. 用introduction of gas造句挺难的