The selection of the fire protector is the problem faced in engineering design and production safety in the plants dealing with petrochemical material, petroleum, natural gas and combustible gas.
阻火器的选用是石油化工厂、石油和天然气工厂、有可燃性气体的工厂生产安全保护和工程设计中常遇到并需解决的问题。
There are a number of special processes simulation softwares have been used in design and optimization of commercial installations for petroleum and natural gas chemical engineering.
已有许多专用流程模拟(仿真)软件应用于石油和天然气化工工业设施的设计和优化。
The natural gas is to sweep, efficiently, high-quality energy and the chemical engineering raw material, is petroleum and coals best in lieu of energy.
天然气是清洁、高效、优质能源和化工原料，是石油和煤炭最好的替代能源。
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