Based on the balance of the fluid in the pipeline and the annular space,I study the pressure of the hole in the bottom and the pressure loss of the both under the laminar flow condition.是什么意思_Based on the balance of the fluid in the pipeline and the annular space,I study the pressure of the hole in the bottom and the pressure loss of the both under the laminar flow condition.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句