How to renewal the oil tank air pipe which is full of oil;
满油的油舱、油柜如何换新空气管
In large ships,there are many variously shaped oil tanks,in which heating pipelines layout is unlike with each other.
大型水面船舶的油舱众多,形状各异,加热盘管的布置差异很大,仅靠人工计算特别耗时,还容易出错。
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