这台新型钻机能钻透十米厚的坚固岩石。

This new model of drilling machine can bore through solid rock ten metres deep.

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切口在隧道壁边界的外面，隧道壁是由钻机在钻透土地或岩石时挖出的。

The kerf is the outside boundary of the tunnel wall that a boring machine gouges out as it bores through the ground or rock.

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这台钻机能钻透岩石。

This drill can bore through rock.

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这台钻机能钻透岩石。

To bore(a shaft) with a trepan.

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这台钻机能钻透岩石。

To bore(a shaft) with a trepan.

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