问答题翻译:In other countries products pipelines may move refined products from coustal refinery or tanker unloading terminals to the interior of the country to supply populated areas.
问答题翻译:Products pipeline can often carry serveral different products in the same pipeline.
问答题翻译:As it expends it rises in the take -the height to which it rises is calibrated to indicate to indicate temperature.
问答题翻译:The most common means measuring rate of flow of a fluid is based on the principle that if there is a contraction or constriction (a section of reduced diamater) in a pipe,the pressure of a fluid flowing down-stream from the contraction will be lower than that up-stream from the contraction.
问答题翻译:There are special types of valves designed to be operated by control instrument rather than by hand.