冒口切割
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gate and riser cutting machine 浇冒口切割机
riser cutting burner 冒口熔切器
riser cutting
立管切割
以上为机器翻译结果，长、整句建议使用 人工翻译 。
That would mean cutting the existing riser, but now that the siphon inserted into it is bringing oil up to the barges it means risking a serious setback.
ECONOMIST: The Gulf oil spill
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