Pipeline is widely used in petroleum, chemical and other industries as an important conveying fluid equipment.
管道作为输送流体的重要设备，广泛应用于石油、化工等行业中。
The design and research of chemical tower equipment has an important status in chemical engineering and petroleum mechanical industry.
化工合成塔设备的设计和研究，在化工、石油机械工业中有着重要的地位和作用。
Workover machine rig is very important equipment in workover process of petroleum engineering.
在石油工程修井过程中，修井机是非常重要的作业机械。
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