bottle coal是什么意思

用法例句

Constitutive equations of coal containing methane based on mixture theory;

基于混合物理论的含瓦斯煤本构方程

Additional influence due to adsorption should be considered in study mechanics and deformation characters of coal containing methane.

气体的吸附和解吸作用将引起煤体的膨胀和收缩,研究含瓦斯煤的力学性质和变形特性必须考虑吸附作用对煤体的附加影响。