They can produce a "ball valve" effect by intermittently occluding the atrioventricular valve orifice.
他们可以产生“球阀”效应，引起房室瓣口间歇性关闭。
Clearly, the effect of this must be taken into account when the orifice plate dimensions are determined.
显然，这种效果，必须考虑到当孔板方面的决心。
In the paper, the effect of the die orifice dimension on output and working pressure is analyzed.
分析了模孔尺寸对机器产量和工作压力的影响。
Better heat dissipation effect can be simply and effectively achieved by adding a thin wall orifice in the heat dissipation tube.
在散热管中加装薄壁小孔，既简单可行又可取得较好的散热效果。
It also studies the effect of nozzle, orifice shape and the amount of dissolved gas on the spray quality and configuration.
喷嘴喷孔形状和溶气量对喷雾质量、结构的影响。
The increase of the angle between centerline of nozzle orifice and axis of secondary combustor can promote collision number, but the effect is small.
喷口中心线与补燃室轴线的角度增加对碰撞有催进作用，但影响效果相对较小；
Will study summary especially in different orifice group for precision condition take off , implement single surface to weld the two-sided shape technical and technology effect of welding thoroughly.
特别要研究总结在不同管口组对精度条件下，实施单面焊双面成形根焊的技术和工艺效果。
The die-swell mechanism of polycarbasilane(PCS) melt for a spinneret with Y-shaped orifice and the effect of die swelling of PCS on the profile degree (PD) of Y-shaped SiC were investigated.
研究了聚碳矽烷（PCS）熔体在Y型喷丝孔中的挤出胀大机理、膨胀模型以及膨胀比对Y型碳化矽纤维异形度的影响。
They were taken the test of skin property, and observed the effect and Sebum secretion, moisture content, elasticity, and the change of follicular orifice before and after the treatment.
治疗前后做皮肤性质测试，观察痤疮皮损消退情况及皮肤皮脂分泌、水分、弹力度及毛孔的变化。
For orifice compensated aerostatic bearings, entrance effect leads differences between actual pressure distributions and traditional laminar flow assumption in gas film of the bearings.
小孔节流空气静压轴承中，由于进口效应现象的存在导致轴承气膜内实际压力分布不再符合传统的层流假设。
Objective: To evaluate the clinical effect of the double-orifice technique in the treatment of the anterior leaflet prolapse of mitral valve.
目的进一步探讨双孔成形技术治疗二尖瓣前叶脱垂的临床可行性。
Methods to check Eustachian orifice, give Eustachian tube insufflation and medical therapy simultaneously to 64 patients suffering from OMSC (84 ears), and evaluate therapeutic effect.
方法对分泌性中耳炎患者共64例(84耳)采取内镜下咽鼓管口检查、吹张及同步注药术进行治疗，并进行疗效评价。
Methods to check Eustachian orifice, give Eustachian tube insufflation and medical therapy simultaneously to 64 patients suffering from OMSC (84 ears), and evaluate therapeutic effect.
方法对分泌性中耳炎患者共64例(84耳)采取内镜下咽鼓管口检查、吹张及同步注药术进行治疗，并进行疗效评价。
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