查询词典 tapping drill

Professional management of various oil machinery and equipment for oil fields, wells, mines and other industrial building supply various models of the three cone bit, PDC drill, drill pipe, fishing tool.

专业经营各种石油机械设备，为油田，水井，矿井等工业建设供应各种型号三牙轮钻头，PDC钻头，钻杆，打捞工具。

The downhole milling pipe string of screw drill tool will produce great reverse torque while milling and grinding the bridge plug, cement plug and so on, and which is extremely harmful to the screw drill tool .

针对螺杆钻具磨铣钻削井下桥塞、水泥塞及类似钻削工作中管柱在井下所产生的巨大反扭矩的危害，在对磨铣钻削管柱进行受力分析的基础上，提出了改进方案，即&井下防扭装置&和&磨铣钻削管柱的配置&，有效地降低了反扭矩带来的危害，改善了磨铣钻削管柱的受力状况。

The engineering drilling machine of KP2500 type is a species of full hydraulic pressure rotating plate-drilling machine developed by our company newly, this drill adopts full hydraulic pressure drive, con stant power variable loop, wheel cylinder startup and electrohydraulic multiple operation, the drill can adjust Torque according to stratum situation and reduce pressure to deep drilling automatically.

KP2500型工程钻机是我公司最新研制的一种全液压转盘式钻机，该机采用全液压驱动，恒功率变量回路，分泵起动，电液复合操作，钻机能够根据地层情况调整扭矩和减压自动钻进。

The mechanism of vaporization , cavitation and water-hammer of drill fluid occurring on the suction stroke of drill pump is investigated.

对钻井泵吸入过程中钻井液产生汽化、汽蚀与水击现象的机理进行了探讨。

That is an air powered grinder (portablegrinder, angle grinder, straight grinder, drill, impact wrench,riveting hammer, hammer drill).

那是一个气动砂轮机（手持砂轮机、角型砂轮、直型砂轮、钻机、冲击扳手、铆钉锤、锤钻机）。

That is an air powered grinder (portable grinder, angle grinder, straight grinder, drill, impact wrench, riveting hammer, hammer drill).

第 20 页共 39 页那是一个气动砂轮机(手持砂轮机，角型砂轮，直型砂轮，钻机，冲击扳手，铆钉锤，锤钻机)。

That is an airpowered grinder(portable grinder,angle grinder,straight grinder,drill,impact wrench,riveting hammer,hammer drill).

那是一个气动砂轮儿机(手持砂轮儿机、角型砂轮儿、直型砂轮儿、钻机、冲击扳手、铆钉锤、锤钻机)。

That is an air powered grinder (portable grinder, angle grinder, Page 49 of 76 工程建设现场英语五百句 straight grinder, drill, impact wrench, riveting hammer, hammer drill).

那是一个气动砂轮机(手持砂轮机，角型砂轮，直型砂轮，钻机，冲击扳手，铆钉锤，锤钻机)。

V' y2 _1 {9 f q2 W 344、That is an air (electric powered grinder (portable grinder, angle grinder, straight grinder, drill, impact wrench, riveting hammer, hammer drill).

P- e2 y' f 那是一个气动砂轮机（手持砂轮机、角型砂轮、直型砂轮、钻机、冲击扳手、铆钉锤、锤钻机）。

During the course of solving the grinding wheel cross-sectional profile, it also analyses the grinding wheel cross- sectional profile errors and the errors sensitive parameters,which are resulted by the existence of the drill end-sectional errors and the relative position errors between the drill bit and the grinding wheel.

并分析了在求解砂轮截形的过程中，由于存在钻头端截面误差和钻头与砂轮相对位置误差，所带来的砂轮截形误差及其误差敏感性参数。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。