检漏孔中心线应对两相邻螺柱通孔跨中。
The leak detection hole axis should pass the middle of two neighboring studs clearance holes.
文中还给出显色检漏中漏孔漏率的定量方法。
This pepar also presents a quantitative method for calculating leak rate of leaks in leak detection by color change.
同时，发现随着漏孔长度的减少而压力指数变大的规律。
The experimental results show that the relationship is correct and the exponent of the gas pressure increases with the decreasing length of leaking hole.
该文介绍正压漏孔校准装置的校准原理，设计方法，参数选取。
The calibration principle, the design method and the parameters selection for the pressure leak calibration apparatus are introduced.
正压漏孔校准装置可采用定容法和定量气体动态比较法进行正压漏孔的校准。
The methods of the constant volume and the dynamic comparison of quantitative gas are used in the calibration apparatus of pressure leak to calibrate the pressure leak.
为了对密封件的漏孔提出定量分析的概念，举例说明了漏孔漏率的计算步骤。
An example illustrating the procedure of calculating the rate of leakage of the leak holes is proposed to give a concept of quantitative analysis of the leak holes in seals.
本文介绍的校准装置，它可以“用己知漏率值的参考漏孔相对比较法来校准漏孔”。
This report introduces the calibration apparatus which is need through the reference leak in the relative comparison method of the known leakage rate value to calibration leaks.
通过传递标准漏孔与德国PT B开展了漏率比对，验证了测量不确定度评估结果的可靠性。
Through the leak-rate comparison with PTB using standard leak, the reliability of uncertainty evaluation results has been verified.
恒压式气体微流量计(CPFM)被多个国家级实验室选作为计量学设备，用来校准真空规和真空漏孔。
The constant pressure flowmeters (CPFMs) were used to calibrate vacuum leaks and vacuum gauges in some national laboratories.
在漏孔校准过程中，通过调节稳压室中的压力，很容易使标准气体流量与漏孔漏率非常接近或相等，从而避免四极质谱计的非线性影响。
In calibrating the leak, the pressure in the ballast chamber can be precisely controlled in such a way that the standard gas flow through the orifice is close or equal to the leak rate.
管道泄漏声发射信号既携带结构的某些特征信息（泄漏孔大小和位置等） ，同时又有很大的随机性和不确定性，属于一种非平稳随机信号。
The AE signals of pipeline leak carry the information of structure integrity (the dimension and location of leak), which are random and uncertain, and belong to non stationary signals.
管道泄漏声发射信号既携带结构的某些特征信息（泄漏孔大小和位置等） ，同时又有很大的随机性和不确定性，属于一种非平稳随机信号。
The AE signals of pipeline leak carry the information of structure integrity (the dimension and location of leak), which are random and uncertain, and belong to non stationary signals.
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