1) normal circulation slewing drilling machine
正循环回转钻
1.
The measures to control construction quality are analyzed,which are used to drill deep holes with normal circulation slewing drilling machine.
分析了正循环回转钻深孔施工的施工方法和要点,提出了施工监理的监理质量控制点及注意事项。
2) normal-circulation rotator
正循环回转钻机
1.
The application of normal-circulation rotator in reveres circulation drilling in sandy gravel stratum;
正循环回转钻机在砂砾层的反循环应用
3) direct cyclic rotation drilling well
正循环回转钻井
4) normal circulation rotary drilling method
正循环回转钻井法
6) dual tube drilling
气动或液动冲击回转双管正循环钻进
补充资料:冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
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