闭壳层;
After the fabrication of the U type tubular mode heat exchanger core is completed, the shell side hydro-test shall be performed in order to protect the joints of the tube and the tube from leakage.
U型管式换热器芯子制作后应进行壳程水压试验,以确保管接头及管不泄漏。
Selection of Sulfur Recovery Process Scheme Completed with Shell Coal Gasification
壳牌煤气化配套硫回收工艺方案的选择
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