Most of the third molar embryo had been formed and their tooth crowns had been calcified, the occurrence ratio was 84 0 % in maxilla and 85 2 % in mandible.
上下颌第三磨牙牙胚绝大多数已形成且牙冠已钙化完成，其出现率为上颌84 0 % ，下颌85 2 % ；
At present, the V_P/V_S ratio keeps in high value anomaly, we should be alert the occurrence of felt earthquakes when the mean value drop.
目前九江—瑞昌地震序列的波速比持续处于高值异常，应当警惕回落到平均值以下后发生显著有感地震。
The cause of occurrence of power overload and the unstable curve of head-flow volume for low rate ratio pumps was analyzed in this paper. Some methods, then, were presented to solve the problems.
分析了低比转数离心泵出现不稳定扬程-流量特性曲线及功率过载的原因，提出了相应解决办法。
The pressure test on granite has researched into the tectonic activities between the continuous occurrence of strong earthquakes and its spatial-temporal characteristics of modulation ratio.
并用花岗岩块体受压实验结果初步探讨了中强地震连发及其调制比时空展布特征的构造活动。
The inter-porosity flow factor and the elastic storativity ratio determine the occurrence time and the degree of the inter-porosity flow.
窜流系数和裂缝弹性储容比的变化决定了窜流段发生的早晚和程度；
Objective: To enhance the success ratio of the machinery ventilates patient's leaving alone stomach tube intubates disposable, reduced responded bad occurrence in the process of intubation.
作者：蒋可松，廖巧玲，蒋小剑，李世胜，邓永梅目的：提高机械通气患者留置胃管的一次性插管的成功率，减少插管过程的不良反应。
Objective: To enhance the success ratio of the machinery ventilates patient's leaving alone stomach tube intubates disposable, reduced responded bad occurrence in the process of intubation.
作者：蒋可松，廖巧玲，蒋小剑，李世胜，邓永梅目的：提高机械通气患者留置胃管的一次性插管的成功率，减少插管过程的不良反应。
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