straight nozzle 中文意思是什麼
straight nozzle
解釋
直噴管-
Suction piping for all pumps shall have at least five ( 5 ) times the nominal pump suction flange diameter of straight pipe upstream of the suction nozzle
所有水泵的吸水管道直徑至少應有5倍于吸入口的上升直水管段的額定邊緣直徑。
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