volcanic rock是什么意思

用法例句

Research on hydrocarbon migration period by using effusive rock calibration method;

利用喷出岩标定法研究油气运移时期

In this paper, Analysis in theory has been made of the problem of extrusive flame through window in exterior wall applying the concerned knowledge of lleat Transfer and Fluid Mechanics, and experimental study has been made of the problem.

用传热学、流体力学等的有关知识，从理论上分析了通过外墙窗口喷出火焰的有关问题，并对这些问题进行了实验研究。