英语翻译These type of pumps cannot be started against a closed head but opening the discharge block valve without the pump running would allow unacceptable back flow through the pump
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英语翻译Thesetypeofpumpscannotbestartedagainstaclosedheadbutopeningthedischargeblockvalvewithoutthepumpr
英语翻译These type of pumps cannot be started against a closed head but opening the discharge block valve without the pump running would allow unacceptable back flow through the pump
英语翻译
These type of pumps cannot be started against a closed head but opening the discharge block valve without the pump running would allow unacceptable back flow through the pump
英语翻译These type of pumps cannot be started against a closed head but opening the discharge block valve without the pump running would allow unacceptable back flow through the pump
这些类型的泵无法启动针对头部,但开放的排放阀块没有运行将使通过泵接受回流泵