作为对反压裂抗议活动的回应，法国直接禁止页岩气开采；在英国，反压裂激进人士——一压力集团，已经关闭了钻井点。
In response to anti-fracking protests, France has slapped a moratorium on the practice; in Britain, activists for Frack Off, a pressure group, have shut down drill sites.
快速响应和高流动性，往往关键维护应用在反压罐压力。
Fast response and high flow is often critical to maintaining tank pressures in back pressure applications.
还给出微泵流量与扩散管长宽比、厚宽比、液体粘度和进出口反压差的定量关系。
Quantitative relations of the pump flow rate versus the ratio of diffuser length to width, the ratio of diffuser thickness to width, fluid viscosity and backpressure were also given.
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