mother-of-coal 中文意思是什麼
mother-of-coal
解釋
絲炭-
Water supplying pipe in front of the coal economizer should be installed with a stop valve and check valve for the factory using boiler of mother tube water supplying
7採用母管制供水的電廠,進入每臺鍋爐省煤器前的給水支管均應裝設截止閥與逆止閥。兩閥應緊接,按水流方向逆止閥在前。
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