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1·Weaving excavate and grub supersedure plan is means of dealing with connection of excavate and grub in mine production, and is chief and basal work.

编制采掘接替计划是处理采掘关系决策的手段，也是其首要的和基础性的工作。

2·Weaving excavate and grub supersedure plan is means of dealing with connection of excavate and grub in mine production , and is chief and basal work.

编制采掘计划是处理采掘关系决策的手段，也是其首要的和基础性的工作。