内腔

Blood-brain barrier in tumors and peritumoral oedematous regions had the same variations in ultrastructure.

瘤体和瘤周水肿区血脑屏障超微结构变化无明显差异，内皮肿胀，毛细血管腔狭小，胶面有稀疏的绒毛样突起，内皮为无孔型，胞质内胞饮泡较多，内皮紧密连接增长，细胞连接间隙增宽，基膜完整，胶质膜缺损。

Objective The effects of PTCA on acute and chronic total coronary artery occlusions were studied.

目的 观察急性和慢性冠状动脉闭塞经皮冠状动脉腔内成形术

Materials and methods: Vitro model of discolored teeth: Sample of fresh erythrocytes was placed in the pulp cavity of 20 extracted teeth and centrifuged twice daily for 25 minutes over a period of 3 consecutive days.

材料与方法：在20颗因正畸拔除的健康离体牙髓腔内封入新鲜红细胞，以2500rpm／min离心25分钟，每天两次，连续离心3天制备变色牙模型。

A chest tube can be placed to re-expand the lung.

闭式引流管可排出胸膜腔内的气体使萎缩肺膨胀。

Imports of liquid from entering the rotating rotor tube cavity, the role of the centrifugal force and pressure into the receiver tube, through the receiving tube speed can be transformed into a smooth, non-pulsating pressure from the export pipe emissions.

液体从进口管进入旋转的转子腔内，在离心力和压力作用下进入接收管，通过接收管将速度能转化为平稳、无脉动的压力能从出口管排出。

The homogeneous vortex theory about fluid is applied to this complex system by using Pfeiffers method and the vorticity of the liquid is only related to time.

应用Pfeiffer关于全充液腔内液体旋度平均化思想研究全充液弦索系统，使液体旋度仅与时间有关。

The results show that the surface quality of magnesium alloy die casting improved greatly with the increase of the velocity of high-speed injection stage in a cert.

针对汽车发动机缸盖罩盖零件，采用压力传感器，通过对铸件的表观质量进行评定及铸件密度和抗拉强度的测定，系统研究了镁合金压铸过程中快速充型速度和起速位置对型腔内压力变化和铸件质量的影响。

Ball two, one is a floating ball valve, which can be a floating ball in the valve chamber, relying on both ends of the compression ball and stable sealing seat.

球阀有两种，一种是浮动球阀，即球体在阀腔内可浮动，依靠两端的密封座压紧球体而稳定。

The stigmas are near the tips of the upside down umbrella-shaped style. Once the pollinators push their way into the inner chamber, they have a jolly time rolling in the pollen and slurping the nectar.

柱头的位置接近倒伞形结构的尖端(可以参考原始网页的图，左边是一般植物的花，右边是瓶子草的)，当授粉者钻进腔内的时候，它们会在花粉间钻动，啜食花蜜。

The special characteristics of kinetic energy and momentum of horizontal rotary cavity flow in internal dissipating tunnel with an inlet shaft are analyzed.

研究了水平旋转内消能泄水道空腔环流特有的能动量特性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。