The reservoirs of the medium rank coal characterize low gas content, low gas saturation, good permeability, and high energy in Hedong area of Shanxi, China.
中国山西河东地区中阶煤储层的含气量比较低、含气饱和度低，而储层渗透性好，储层能量比较大；
The variation of medium pore diameter and porosity factor is in accordance with that of the pore volume, showing a high permeability of low rank coal reservoirs.
中值孔径、孔隙率的变化特征与孔容一致，预示了低煤级煤储层较高的基岩渗透率。
The main reason for the rise of the coal rank and its composition transformation is the process of regional metamorphism and the influence of medium conditions around it.
造成这种煤的变质程度升高而夹矸成分转化的主要原因是区域变质作用及周围介质条件影响所致。
The hotel has many in addition medium, small conference room and international interview hall to satisfy the international and domestic's different rank, form and scale conference request.
酒店另设有多个中、小型会议室、国际接见厅，以满足国际、国内不同级别、形式和规模的会议要求。
The hotel has many in addition medium, small conference room and international interview hall to satisfy the international and domestic's different rank, form and scale conference request.
酒店另设有多个中、小型会议室、国际接见厅，以满足国际、国内不同级别、形式和规模的会议要求。
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