水泥浆的有效浆柱压力是在初凝前还是在初凝后降低至水柱压力，直接关系到能不能在固井候凝过程中压稳地层流体、实现压稳防窜候凝。
The time when the cement slurry's column pressure reduces to the water column pressure before or after initial set is directly related to whether or not formation fluids flow out during wait-on-time.
方法：30例阻塞性睡眠呼吸暂停患者，耳穴贴压治疗前及治疗后10天进行夜间7小时多导睡眠图监测。
Methods 30 cases of OSAS were monitored with a polysomnography (PSG) during 7-hour night sleep before and after receiving a 10 day ear point tapping and pressing therapy.
文章分析了孔板的开孔率对管路最大流量、孔板前压力、孔板后压力和孔板前后压差等的影响。
The paper analyzed the influence of the orifice ratio on maximum discharge, the inlet pressure, outlet pressure, differential pressure, ect.
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