The warm high ridge at the middle and low troposphere and the lower pressure of the ground all provide the good circulation background of this heavy fog.

对流层中低层的暖脊和地面均压场的维持是此次大雾形成的良好环流背景。

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Opposition tornado extramarital affairs, they should find the nearest low-lying and V on the ground, but to stay away from trees, poles, so as not to Piza, the pressure and electric shock.

在野外遇龙卷风时，应就近寻找低洼地伏于地面，但要远离大树、电杆，以免被砸、被压和触电。

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We dispulled together. cleaned and ground the high and low pressure vingves.

我们拆出高高压阀举办干净研磨。

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High demand for water amid the heat wave and problems with soil shrinking as the ground warms has resulted in burst pipes and low water pressure in Oklahoma City, prompting officials to issue mandatory water-use restrictions for the first time in at least a decade, according to utilities department spokeswoman Debbie Ragan.

CNN: Heat advisories issued to states dwindles to 15