Most of main pump in pump stations driven by variable speed motor for long distance transport petroleum engineering.
在长距离输油（气）管道工程中，大部分泵站内的主泵采用调速电机驱动。
In addition to the pump cylinder liquefied petroleum gas, but also transport liquid hydrocarbons, ammonia, propylene and other similar volatile nature of liquid and petroleum products.
该泵除罐装液化石油气外，还可输送液态烃、液氨、丙稀等各种性质类似的挥发性液体及石油产品。
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