Steel tooth bit can increase the bit's stability and lower the tooth impact load, and enhance its wear resistance.

钢齿牙轮钻头增强了工作的平稳性，降低了牙齿的冲击载荷，使牙轮钻头的耐磨性能得到提高；

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Insert tooth bit applies in every serious geography especially hard rock; it has stable drilling speed and can drill the hardness of rock at 1-6 grades.

镶齿牙轮钻头主要适用于地质较硬的岩层，它钻进速度稳定，可以钻进1-6级地质硬度，适用于各种恶劣的地质环境。

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Along with the oil prospecting and production, the existent drilling bit (steel and tungsten carbide tooth bit) was not effective in some complicated stratum.

随着油气勘探开发的不断深入，现有牙轮(钢齿、镶齿)钻头已难以对一些复杂地层进行有效的钻进。

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Several of the book's 11 stories are set in Elk Tooth, a two-bit town of three bars and 80 residents, many with mouth-clogging names: Gilbert Wolfscale, Hard Winter Ulph, Wiregrass Cokendall.

ECONOMIST: New fiction

All he had discovered was a piece of ape-like skull, a tooth and, some way away, a bit of humanoid femur, which he believed came from the same individual.

ECONOMIST: How man has learned, through history, about his habitat

"Your honor, last night I bit down on something, and I have an abscess in my tooth, " Muhammad said, according to the court transcript.

CNN: Muhammad blames toothache for lawyer switch