我可以看见他们随时都可能把水牛卖掉,变得机械化……。
The best set of mechanise is put out, named as '922111', with the present equipment for shaft construction. The mixing work style of cutting and building in short section.在我国现有先进凿井设备条件下,选择短段掘砌混合作业方式,提出了深立井机械化配套的最佳模式是以“922111”为内容的综合机械化作业线。