目的：检测差压安全阀的工作性能。
Purpose: To test operation of pressure differential relief valve.
将这个读数记录为安全阀的开启差压。
Record this as the opening differential pressure of the relief valve.
差压流量传感器也可用。
注意：重要的是，差压计的指针要慢慢下降。
Note: it is important that the differential gauge needle drops slowly.
介绍了差压式截止止回阀的结构、性能和设计要点。
To introduce the structure, performance and design of the differential stop check valve.
当被测参数为较小的差压值时，倾斜度可再稍大一点。
If measured value is much less, gradient can be a little bigger.
本文介绍了一种新研制的新型智能化差压式双向流量计。
This paper introduced a new intelligent differential pressure type double flow meter.
提出了由一只静压和一只差压传感器构成的复合式传感器。
The combination sensor made up of pressure and differential pressure is given.
应用工业气体安全关断，压力控制或压差控制系统应用。
Application Industrial gas system applications for safety shutoff, pressure control, or differential-pressure control.
他们依靠在他们的整个作用面上，并且实际不能承受任何压差作用。
They rest on their whole active surface and practically can not stand any pressure difference action.
用压差法测试塑料薄膜的透气性，是一个长期使用的主流测试方法。
One of the main methods to test the gas permeability is using partial pressure difference.
本文就压差换算提出一种方法并举出一个实例。
The article presents a method of pressure difference conversion and provides an example.
介绍了用压差测量仪测试水泵扬程的方法。
It is described how to measure the pump lift with pressure difference meter.
注意：重要的是压差读数慢慢下降。
用新式压差法测量蒸发器水位，其测量精度高达2%。
With the new differential pressure method, the measuring accuracy is as high as 2%.
浅层气井日产气量相对低于深部气井，日产水量较大，生产压差大；
The shallow gas wells have lower production than the deep wells, and have large water production.
观察第一止回阀压差(A-B)。
Observe the apparent first check valve differential pressure (a - b).
压差安全阀位于止回阀之间的区内。
A pressure differential relief valve is located in a zone between the check valves.
对定产量生产，跟端压差随时间逐渐增大；
Under the constant production rate condition, the pressure difference at the heel increases with time.
每周：测量压差。
多级降压调节阀主要应用于有气蚀、噪音高、流体压差高的环境。
Multistage decompression regulating valve is mainly applied to cavitation, high noise, fluid high pressure environment.
文章介绍了所开发的经济压差优化无功潮流程序。
In this paper the optimum reactive power flow program of economic voltage difference is presented.
因波纹管是四氟材料制作的，压力、压差大，容易导致波纹管破裂。
PTFE material for corrugated pipe is made, pressure, pressure large, easily lead to broken bellows.
因波纹管是四氟材料制作的，压力、压差大，容易导致波纹管破裂。
PTFE material for corrugated pipe is made, pressure, pressure large, easily lead to broken bellows.
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