Last Updated:2025/12/05
Sentence

掘削クルーは頁岩層を貫く際に大きく摩耗したため、ローラーコーン式ドリルビットを交換した。

Quizzes for review

The drilling crew replaced the roller cone bit after it showed significant wear while penetrating the shale layer.

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The drilling crew replaced the roller cone bit after it showed significant wear while penetrating the shale layer.

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Related words

roller cone bit

Noun
Japanese Meaning
油田やガス田の井戸を掘削する際に使用される、先端部がローラー形状のドリルビット。
What is this buttons?

掘削クルーは頁岩層を貫く際に大きく摩耗したため、ローラーコーン式ドリルビットを交換した。

Related Words

plural

English - English

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