So every so often a sample is obtained with a coring bit.

因此時常要用取芯鉆頭取樣国产又黄又湿又色的免费网站。

Often a sample is obtained with a coring bit. It cuts a clean cylinder of rock, from

地質(zhì)學(xué)家需要知道鉆頭已以到達什么樣的巖層，因此時常要用芯鉆頭取樣欧美一级黄片久久久久久久。

The gologist needs to know what rocks the drill has reached,so every so often a sample is obtained with a coring bit.

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The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit.

地質(zhì)學(xué)家需要知道鉆頭已經(jīng)到達什么樣的巖層黄色性爱欧美狂野澳门，因此時常要用取芯鉆頭取樣。

The geologist needs toknow what rocks the drill has reached, so every so often a sampleis obtained with a coring bit.

地質(zhì)學(xué)家需要知道鉆頭已以到達什么樣的巖層国产免费AⅤ片在线观看播，因此時常要用芯鉆頭取樣人人操人人射人人干。

The geologist needs to know that rocks the drill has reached, so every so often a sample is obtained with a coring bit

地質(zhì)學(xué)家需要知道鉆頭已經(jīng)到達什么樣的巖層，因此時常要用取芯鉆頭取樣日韩小视频在线。

Drill tools, coring bit and casing bit have been designed and a complete set of equipments and tools have been formed. Rules of operation have been made to operate these equipments more proficiently.

完成了空氣潛孔錘跟管取心鉆具国语对白露脸刺激自拍、取心鉆頭、套管鉆頭的研制亚洲日本网，并配套了合理的設(shè)備和器具三级片黄片日韩，制訂了實用、操作性強的空氣潛孔捶跟管取心鉆進技術(shù)規(guī)程久久阿只有精品。

Geologist so every so often The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit.

地質(zhì)學(xué)家需要知道鉆頭已經(jīng)到達什么樣的巖層亚洲国产福利精品一区在线观看，因此時常要用取芯鉆頭取樣。

Coring bit ['k3ti8 bit]n.

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Wireline coring tool mainly consists of fishing mechanism, spring slips, inner and outer barrel combination, core catcher subassembly and coring bit.

繩索式取心工具主要由打撈機構(gòu)、彈卡機構(gòu)www.爱99、內(nèi)外筒組合件三级片网站视频免费看、巖心爪組合件和取心鉆頭等部件組成。