The temperature remained constant while pressure was a variable in the experiment.
做这实验时温度保持不变，但压力可变。
Variable displacement pump's control style has many ways, such as constant pressure, constant fluid, constant power, electrohydraulic proportional and load-sensing etc.
变量泵的控制方式有恒压力、恒流量、恒功率、电液比例和负荷敏感控制等。
A variable reluctance pressure transducer is described in this report.
本文介绍一种变磁阻压力传感器。
Applying the superposition principle, the transient rate's mathematics model under the variable flowing pressure condition has been introduced.
应用叠加原理建立了变流压条件下不稳定流量响应的数学模型。
As a method of drying, the explosion puffing drying at variable temperature and pressure difference is a new technology.
变温压差膨化干燥是一种新型的果蔬干燥技术，在胡萝卜加工中的应用还处于起步阶段。
The article analyzes that the constant pressure variable piston pump equipment allocated on the imported 922e LHD is not suitable for domestic using conditions.
文章对进口922e铲运机所配装的恒压变量柱塞泵不适合国内使用条件进行了分析。
Based on this, a new type of hole's grout pressure variable grout injector has been developed.
据此研制了一种可变注浆孔内压力的新型注浆器。
This paper calculates and analyzes pressure on intake valve and confirms and optimizes variable intake valve phase.
笔者对进气门处压力进行了计算分析，对可变进气门相位进行了确定及优化。
A general scheme of a high pressure, variable flow and variable pressure aircraft intelligent hydraulic pump system is proposed in this paper.
提出了一种高压变流量变压力机载智能泵源系统的总体方案。
A hydraulic vibratory system is developed for vibratory pile pressing. It can produce variable pressure with a specified frequency in hydraulic circuit for hydraulic static pile pressing machine.
为液压静力沉桩机液压系统的压桩油路中产生一定频率压力变化，实现振动压桩而研发了一套液压振动系统。
Based on the nonlinear and time varying parameter of the cabin pressure regulating system characteristics, a control strategy of fuzzy sliding mode variable structure control is proposed.
针对座舱压力调节系统的非线性和参数时变特性，提出了模糊滑模变结构控制方法。
The Characteristics of valve movement using fully variable hydraulic valve train is studied by measurement of valve lift and oil pressure of fully variable hydraulic valve train.
通过对全可变液压气门机构的气门升程和液压压力的试验测量，研究了全可变液压气门机构的气门运动特性。
This method is suitable for the system with variable temperature and pressure.
压力项因子的引入，使得该方法能够适用于温度、压力变化的体系。
When the regulation is performed by variable flow rate, there exist two operation regulation modes with fixed zero pressure difference and variable zero pressure difference.
采用变流量调节时，存在定零压差点和变零压差点两种运行调节方式。
On the basis of the principle of a middle pressure common rail electronically controlled variable valve system, a model has been built for modeling the system and its accuracy achieves 93%.
根据研制的中压共轨电控可变气门系统机构的工作机理，建立了中压共轨电控可变气门系统的仿真模型，试验证明其精度达到了93 % 。
The process of supersonic steam water two phase flow in a channel with variable section is studied experimentally and the pressure profiles along the channel are obtained.
通过对超音速汽液两相流在变截面通道中的升压过程的实验研究，得到了变截面通道内超音速汽液两相流的压力分布规律。
In the light of the pickup current of a submersible electric pump being too large when started at full pressure, a new variable frequency control system is developed.
针对电动潜油泵工频全压启动时存在启动电流过大等诸多问题，开发出新型电动潜油泵变频控制系统。
We applied the finite element method to study the variation of sound absorption structure and performance of rubber material under variable hydraulic pressure.
应用有限元方法计算静水压力变化下几种橡胶吸声结构的形变和吸声性能。
It is used in double pumps and circuits high pressure variable system on model JY320 hydraulic excavator.
用于JY320型液压挖掘机等的双泵双回路高压变量系统。
The solutions of a large deflection problem of thin orthotropic circular plates with variable thickness under uniform pressure and under concentrated load are obtained in this paper.
本文给出了正交各向异性变厚度圆薄板在均布载荷与集中载荷作用下大挠度问题的解。
The solution of large deflection problem of thin orthotropic circular plates with variable thickness under uniform pressure under simply supported boundary condition is obtained in this paper.
本文给出了正交各向异性变厚度周边简支圆薄板在均布载荷下大挠度问题的解。
The structural topology optimization method—variable density method is used to optimize the topology of an acoustic_box for interior sound pressure reduction.
基于变密度拓扑优化方法和声-结构耦合系统有限元模型，对四角固支箱体模拟的飞机座舱进行了减振降噪分析。
Then, using curve fitting and optimization method, the linear model, hysteresis model and variable linear model of pressure-torque relations are developed based on test data.
其次，在获得大量试验数据的基础上，运用曲线拟合和优化技术，建立制动压力-力矩关系的线性模型、迟滞模型和可变线性模型。
Effects of variable methanol inlet concentration and cathode pressure on fuel cell performance and methanol crossover are analyzed.
分析了不同进料浓度和阴极压力对电池性能和甲醇窜流的影响。
The characteristic is similar to that of the constant pressure variable displacement regulation for the pump.
这一特性和泵的恒压变量调节特性相类似。
This paper introduces the waterwall features and start-up procedure of domestic 600mw supercritical variable pressure operating once through boiler under development.
文中介绍正在研制的国产600MW超临界变压运行直流锅炉水冷壁结构特点和启动过程。
Applying variable pressure difference control can reduce throttle loss and achieve better energy-saving effect.
采用变压差控制可减少阀门的节流损失，具有更好的节能效果。
Applying variable pressure difference control can reduce throttle loss and achieve better energy-saving effect.
采用变压差控制可减少阀门的节流损失，具有更好的节能效果。
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