Low Carbon Steel Pipe 低碳钢管 ; 低碳钢圆管
low temperature heat pipe [热] 低温热管
Low Vacuum Pipe 低真空管
low pressure steam pipe 低压蒸汽管
low density polyethylene pipe [高分子] 低密度聚乙烯管
LG low-pressure gas pipe 低压燃气管道
low-alloy-steel-pipe 低合金钢管
High, medium, low pipe, flange sealing.
高，中，低管道，法兰密封。
If the rate is at the low end of the range and was lower still before a key pipe on top of the blowout preventer was cut to accommodate the top hat, about half as much oil has been spilled so far.
假如现在这个比率是最低的、并且放在防喷器上方的关键性管道适应了高帽之前、仍然保持低比率，那时候泄漏的油约相当于现在已经漏掉量的一半。
On the other hand, cryogenic compressed air in the heat exchanger temperature rise, so that the exhaust pipe is not caused by low temperature and dewing phenomenon.
另一方面，低温压缩空气在热交换器里温度得到回升，使排气管道外壁不致因温度过低而出现结露现象。
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