dall tube 中文意思是什麼
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The dall flow tube is an empirical design with an extremely high pressure head recovery.
Dall流量管是具有特別高的壓頭補償的實驗裝置。 -
The dall flow tube is an empirical design with an extremely high pressure head recovery
Dall流量管是具有特別高的壓頭補償的實驗裝置。
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