孔眼

迎着光看时，就会发现椭圆形小叶子上有微小的孔眼。

When held to the light the small oblong leaves are seen to possess tiny perforations .

可以通过测量射孔后管壁的横向流变应力和孔眼的实际最大尺寸来计算套管在射孔过程中不开裂的断裂韧性指标K（Ic）。

The fracture toughness Klc will be calculated by the transverse flow stress of tube wall and the actual maximum diameter of the aperture .

基于N-S方程的储层渗流与孔眼管流耦合分析

Analysis of Reservoir Seepage and Perforation Pipeline Coupling under Stress Based on N-S Equation

PVR分级A级4眼，B级4眼，C1级2眼，C2级1眼。其中10眼行巩膜外环扎外加压术，巨大裂孔眼行玻璃体手术硅油填充。

Four eyes were PVR grade A , 4 eyes PVR grade B , 2 eyes PVR grade C1 and 1 eye PVR grade C2 . Ten eyes underwent scleral encircling , and the 1 eye with giant tear was treated with vitrectomy and silicone oil fill .

采用定常湍流N-S方程，数值模拟了水平井筒湍流变质量流场，通过分析轴线压降和孔眼附近三维流线图，研究注入比对水平井筒压降的影响规律及混合压降产生的机理。

The turbulent flow field in the horizontal well completed with perforation was simulated by solving the N-S equations . The effects of injection ratio on pressure drop and the mechanism of mixing pressure drop were studied by the analysis of axial pressure drop and three dimensional stream lines .

请不要无意之中使用铝制螺钉固定孔眼！

The eyelets must not be inadvertently secured using aluminium screws !

如果压力过大，孔眼会破裂。

If pressed together too strongly , the eyelet will crack .

个别张力释放裂纹会沿孔眼局部扩展。

Individual tension release cracks partially course along the perforation bores .

射孔水平井孔眼密度优化分析

The Optimization Analysis of Perforation Density in Perforated Horizontal Wells

压裂过程中孔眼摩阻计算的改进模型及应用

Modified model and application of calculating perforation pressure loss during hydraulic fracturing

靴子的高度是23厘米，8圆孔眼。

The height of the boots is 23 cm , 8 eyelets .

孔眼可用不同的切削刀具在车床上加工。

Holes are machined on lathes with various cutting tools .

基于光纤视频测井技术的孔眼自动识别

Automatic Aperture Identification Based on Fiber Video Well Logging Technique

结果核磁共振实验可定量分析射孔孔眼流动效率；

Results The core flow efficiency can be analyzed by the NMR experiments .

将孔眼全面推至张紧拉线的顶端。

Push the eyelet fully on to the end of the tension cable .

水平井射孔孔眼分布方式优化分析

Analysis of perforation tunnel distribution mode in horizontal well

扭转锁必须装入孔眼。

The twist-lock must fit into the eyelet .

上紧叶片弹簧加压机直到衬套凸缘的底部扎实地抵住叶片弹簧的孔眼。

Tighten leaf spring press until bushing flange bottoms solidly against leaf spring eye .

高度：23厘米；5一小卷，3个钩和1圆孔眼。

Height : 23 cm ; 5 ringlets , 3 hooks and 1 eyelet .

孔眼可防止扭矩扳手发生接合。

Eyelet prevents the torque wrench from engaging .

模拟井底条件下射孔孔眼流动特性检测技术的发展

The Development of the Testing Technology of Perforation Flow Performance under Simulated Downhole Conditions

Ⅱ期裂孔眼术后黄斑中心凹形态可完全恢复。

The fovea configuration of stage ⅱ macular holes was easier to recover completely .

逆变式铸件孔眼焊补机的研制

Development of an Inverter Type Welder for the Mending of Surface Holes in Iron Castings

真菌性角膜溃疡穿孔眼内容剜除术后羟基磷灰石义眼座植入5例

Hydroxyapatite artificial eye pedestal implantation after evisceration for 5 cases of mycotic corneal ulcer pene-tration

射孔孔眼是沟通井筒和地层的通道，压裂施工中射孔参数的选择影响到施工效果。

Hydraulic fracturing treatments of oil wells are greatly affected by the perforation parameters selected .

孔眼流入对水平井中流动影响的实验研究

An Experimental Study for Horizontal Well Flow under the Influence of the Inflow Through Perforation

在内侧的色调孔眼。

Tonal eyelets at inner side .

他正从孔眼偷看房内发生的事情的时候被他们抓了个正着。

They caught him peeking through the hole at what was going on in the room .

同样考虑流速在射孔孔眼附近的急剧增加，推导出了压裂充填的汇聚表皮系数。

At the same time , the turbulent skin and the convergence skin for frac-packing were presented .

详细地分析了孔眼壁附近的等效应力随牙齿压入深度的变化关系。

The paper analyzed the equivalent stresses of the hole wall varied with the inserted depth of tooth .