When there is a leak point in the pipeline, the pressure is fallen and the negative pressure wave occurs at once.
当管道某处突然发生泄漏时，泄漏处将出现瞬态压力突降，形成一个负压波，并以一定的速度向管道上、下游两端传播。
Objective To study the effects of nitroglycerin on leak point pressure of chronic complete spinal cord injury female rats.
目的初步探讨硝酸甘油对慢性期完全性脊髓损伤雌性大鼠漏尿点压力的影响。
By combining the transient change model method and rarefaction wave method, the multidimensional rules to detect the leakage and locate the leak point were set up.
并结合管道瞬变模型法与负压波法建立多维判别法则，解决输油管道泄漏检测及漏点定位的问题。
The full information(leak flow and location) of leak point is obtained applying the analysis of transient pressure plot and formula of negative pressure reflectance.
根据定义的负压波反射系数关系式和瞬态压力响应图，应用行波计算方法得到泄漏点的全部信息（泄漏流量和位置）。
Based on production practice experience for many years, the stoppage measures of leak point in cup of low-pressure water-sealed spirally-guided gasholder are discussed.
根据多年生产实践经验，论述了低压湿式螺旋储气罐挂圈漏点的封堵措施。
Hydraulic control adopt insert type compact valve system, with reliable operation, long service life, minimized hydraulic shock, minimized duct connection and possible leak point.
液压控制采用插装阀集成系统，动作可靠，使用寿命长，液压冲击小，减少了连结管路与泄漏点。
Using this algorithm in the location problem of leak point shows that this method can find the leak point and the location precision can be increased by 0.96% in comparison with normal methods.
利用该算法对泄漏点定位，结果表明，该方法能够找到泄漏点，而且与常规方法相比精度提高0.96%。
The need for a fundamental leakage control, we proposed leak point pressure consolidation grouting, so that the cementitious materials pressure can infiltrate a certain depth of fissures or faults.
针对根本治理渗漏的需要，提出对渗漏点压力固结灌浆，使固结材料压力渗入到裂隙或断层的一定深度。
The need for a fundamental leakage control, we proposed leak point pressure consolidation grouting, so that the cementitious materials pressure can infiltrate a certain depth of fissures or faults.
针对根本治理渗漏的需要，提出对渗漏点压力固结灌浆，使固结材料压力渗入到裂隙或断层的一定深度。
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