coalbed methane

• 煤层气

coalbed methane的用法和样例：

例句

1. Coalbed methane is a natural gas resources adsorbed to the coal reservoir.
   煤层气是一种以吸附态储集在煤层中的天然气资源。
2. Diffusion is a process surely occurring during the preduction of coalbed gas.
   扩散作用主要影响煤层气井的早期产量。