下面的横杠确实经常表示压音。

The bar underneath usually does mean bending.

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额定泄放量是用标准状况下的气体体积表示的泄压设施的体积流量。

Rated relieving capacity is the flow capacity of a relief device expressed in terms of air flow at standard conditions ( SCFH or Nm3/h).

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5月31日，英国Cuadrilla资源公司表示，在黑泽附近的页岩气开采已停止作业，现正接受水力压裂开采法是否引发两次微型地震的调查。

In Britain on May 31st Cuadrilla Resources said it was halting a fracking operation near Blackpool, pending investigation of two small earth tremors which it may have triggered.

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