system demand pressure是什么意思

用法例句

The accurate selection of submersible mixer is performed on the basis of the required thrust and the nominal thrust of the mixer.

定量分析了水池中的系统损失,依据所需推力和潜水搅拌器额定推力这两大主要因素对潜水搅拌器进行精确选型,并利用F/P1值和生命周期成本比较了不同搅拌器的工作效率,选择了最优方案。