这就意味着要剪断已经存在的立管，但现在插在那儿的虹吸管正把油吸入驳船内。这样做就要冒一个严重挫败的险。

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.

youdao

下部特殊管件设计，消除水舌、水塞、水壅等现象，保持立管内空气畅通，有效保证管道内的压力平衡，可大幅度提高系统的排水能力。

Upper and under connection design which avoid water block, keep air smooth in the pipe, sure the pressure balance in the pipe, is good to improve drainage ability.

youdao

下部特殊管件设计，消除水舌、水塞、水壅等现象，保持立管内空气畅通，有效保证管道内的压力平衡，可大幅度提高系统的排水能力。

Upper and under connection design which avoid water block, keep air smooth in the pipe, sure the pressure balance in the pipe, is good to improve drainage ability.

youdao