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喷射-由引擎发动的旋喷

3 bytes added, 22:37, 19 October 2015

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虽然人们预计使用引擎比使用人工的优势更大，但就旋喷而言，其实两者用时相同，钻取的深度也相同。由引擎发动的技术只是在人类工程学方面的表现更胜一筹。

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|[[Image:Rotary rig in Chad.jpg|thumb|none|200px|Rotary rig in Chad|在乍得使用旋转钻机]]

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