流体压力（fluid pressure）

A more sophisticated pressure reducing valve incorporates a pilot valve which controls the fluid above the valve operating piston in response to downstream pressureThe bold and italic word “which” means （）.

In the variable delivery pump, moving the spindle more from the central point will cause （） fluid to be pumped and consequently （）pressure is generated to drive the rams.

静压力（static pressure）

（反应堆冷却剂系统）压力边界 (reactor coolant system) pressure boundary

反应性压力系数 pressure coefficient of reactivity

In order to withstand fluid head pressure on a ship，stiffeners are often attached to the bulkhead（）.

当泄漏流体压力作用时，根据流体压力与填料之间的相互作用，流体压力沿轴向的分布出现两种不同的状况是？

“P”、“T”分别是英文“Pressure”（压力）和“Time”（时间）的缩写，故PT燃油系又可称为压力时间系统，它是靠（）的原理来调节喷油量的。

对管道中流体压力的正确测量，所测得的压力值应是流体的（）。

压力抑制系统 pressure suppression system

水压力（hydraulic pressure）

A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a （）.

The storage device for nitrogen-pressurized hydraulic fluid，which is used in closing the blowout preventers is called the（）.

关于Maya中的Fluid Effects（流体特效）说法错误的是（）。

压缩机启动后在定时器设定时间内，允许润滑油压力低于LO RUN OIL PRESSURE的（）

柴油机如果根据喷油泵输出压力（Pressure）和喷油器进油时间（Time）的影响来控制循环供油量，满足柴油机不同工况的需要，这样的供油系统最早发明于美国康明斯公司，被称为（）燃油供给系统。

测量设备内部流体压力的压力表的压力数值称为表压，流体实际压力称为绝对压力，表压力等于绝对压力减去大气压力。

末段终点流量增大时，末段起、终点压力都要减小。相反，终点流量减小时，末段起、终点压力都要增大。When the terminal flow increases, the terminal pressure should be reduced. On the contrary, when the terminal flow decreases, the terminal pressure increases.

流体（）作用于单位面积上的力，称为流体的压力强度，简称压强或压力

在最优末段长度的条件下，末段终点的最高压力等于起点的最低压力。It can be seen that: under the condition of the optimal terminal length, the maximum pressure at the terminal point is equal to the minimum pressure at the starting point.

实际气体actual gas： 压力低、温度高、比体积很大的状态时，接近理想气体It approaches ideal gas at low pressure, high temperature and large specific volume.

8、采用扩散硅芯片作为敏感元件的传感器称为扩散硅型压力传感器，以测量压力和速度的气态压阻式传感器的应用最为普遍。 The sensor using diffused silicon chip as sensing element is called diffused silicon pressure sensor, of which the most common application is used for measuring pressure and velocity by gas piezoresistive sensor.

5、本实验是把气压的压力变化通过扩散硅压力传感器转化为电压的变化，微弱的电压信号经差动放大器放大后，用毫伏表观察电压的变化，并进行数据分析处理和人体血压的测量。 In this experiment, the pressure change of air pressure is transformed into the change of voltage through the diffusion silicon pressure sensor. After the weak voltage signal is amplified by the differential amplifier, the change of voltage is observed with a millivoltmeter, which will be used for data processing and blood pressure measurement.

气体的粘度随压力增高而增高。在低压时，气体粘度随温度升高而增加，随着压力的增加，温度升高对粘度增大的影响越来越小，当压力很高时（100×105Pa以上），气体粘度随温度升高而降低，明显表现出类似于液体的性质。Table 1-13 shows the dynamic viscosity of methane at different pressures and temperatures. It can be seen from the table that the viscosity of gas increases with the increase of pressure. At low pressure, the gas viscosity increases with the increase of temperature. With the increase of pressure, the influence of temperature increase on the inc