Carrying out the cost calculation of underground activity not only needs to set up and perfect the inner management system but also needs information system to back it up.
实施井下作业成本核算不仅需要建立和完善内部管理制度，还要有必要的信息系统予以支撑。
Carrying out the cost calculation of underground activity not only needs to set up and perfect the inner management system but also needs information system to back it up.
实施井下作业成本核算不仅需要建立和完善内部管理制度，还要有必要的信息系统予以支撑。
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