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英语翻译The transmissivity of coal seams was found to be be one

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英语翻译
The transmissivity of coal seams was found to be be one or two orders of magnitude greater than that of asso- ciated rock types.Generally transmissivity of coal seams was found to decrease with depth.However,transmissivi- ty differences of three or four orders of magnitude were found to occur in seams of approximately equal thickness and depth; these were attributed to fractures,bedding- plane separations,and the number and pervasiveness of cleats (Harlow and LeCain 1993).
英语翻译The transmissivity of coal seams was found to be be one
煤层的透射率被发现是大于普通岩石一个或两个数量级.一般煤层的透射率随着深度减少而减少.不过,在相近的有相通的厚度和深度的煤层中透射率的差异玩玩是三个或四个数量级.这是由于地层断裂,岩层分离,以及无处不在的岩层夹层的原因. (Harlow and LeCain 1993).