前置级的英文

• penultimate stage
• prestage

• "前置"英文翻译    prepose; preposition; pre-
• "级"英文翻译    level; rank; grade
• "预级；前置级" 英文翻译 :    prestage
• "前置" 英文翻译 :    prepose; preposition; pre-
• "前置泵" 英文翻译 :    booster pump; fore pump; front-mounted pump; prepump; roughing pump
• "前置波" 英文翻译 :    vorwellen pre-wave
• "前置词" 英文翻译 :    [语言学] preposition◇前置词宾语 prepositional object; 前置词短语 prepositional phrase
• "前置的" 英文翻译 :    fore; prepositive; prepositus; previa
• "前置核" 英文翻译 :    prepositus nucleus
• "前置机" 英文翻译 :    front-end processor
• "前置角" 英文翻译 :    advance angle; angle of advance; lead angle
• "前置镜" 英文翻译 :    preset lens
• "前置量" 英文翻译 :    aim-off; aiming-off; leading
• "前置炉" 英文翻译 :    precell
• "前置码" 英文翻译 :    the leftmost position number
• "前置面" 英文翻译 :    lead-piston
• "前置期" 英文翻译 :    lead time
• "前置器" 英文翻译 :    proximitor
• "前置区" 英文翻译 :    prefix area
• "前置位" 英文翻译 :    preamble bit
• "前置液" 英文翻译 :    ahead fluid; preflush; prepad fluid; spearhead
• "前置柱" 英文翻译 :    pre column; precolumn
• "头前置" 英文翻译 :    anterior presentation
• "前置宣告前置声明" 英文翻译 :    forward declaration
• "边缘性前置" 英文翻译 :    marginal previa

• Experimental study on piezoelectric pre - stage driver of electro - hydraulic servo valves
  压电驱动型电液伺服阀前置级驱动器实验研究
• Therefore , in order to improve the performance of hydraulic servo valve , it is important to study the mathematical model and distribution of jet flow field
  因此,为了改善由射流前置级驱动的伺服阀的性能,研究伺服阀前置级射流流场的数学模型及分布规律是至关重要的。
• Because of the jet flow field for the prestage of hydraulic servo valve driven by jet flow , it is difficult to build an accurate mathematical model , thereby the analysis of servo pipe and whole servo control system is difficult to be carried out
  由射流前置级驱动的伺服阀,由于射流流场的不确定性及流场分布的复杂性,因而很难建立精确的数学模型,从而使伺服阀及整个伺服控制系统的分析难以实现。
• In this paper , field of servo valve prestage is simulated and tested . the 2 - d geometric model of the jet flow field is established by utilizing the cad software autocad , according to the parameter of practical size . the mesh of the model is generated by gambit which is the preprocessor of the fluent software
  本论文针对伺服阀前置级射流流场的流动情况,按照实际使用中伺服阀前置级的参数,应用cad软件autocad建立二维几何模型,运用fluent前处理软件gambit进行了网格的划分。
• A transparent model is used to make the deflection jet board grounded on the inhere enlarged dimensions . the finished experiments are conducted to catch the flow rate directions and the situation of cavitation using a high - speed video cameras . in this paper , the finite element analysis and visualiation research of servo valve prestage jet flow field are carried out , which establish the theoretical foundation for mathematical model of servo valve prestage and the whole mathematical model of hydraulic servo valve
  在对射流前置级驱动的伺服阀射流流场数值模拟的基础上,用有机玻璃在偏导射流板原始尺寸的基础上进行了扩大,制作了透明的偏导射流板,运用高速摄像机、液压泵站等组成了可视化实验系统,对射流流场的流速方向、涡流、气穴等现象进行了多方位的观测,并通过对接收管接收压力的测试,对流场分析结果进行了验证。