... prospecting audio-indicator 探矿用音响指示器 prospecting bit 探钻; 勘探钻 prospecting bore bit 勘探钻头 ...
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prospecting bore bit 勘探钻头
drill bit for mininggeological prospecting 矿山及地质勘探钻头
prospecting bit
勘探钻头
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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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