两凹的

By the analysis and comparison of upsetting extrusion and cold forging technology,the upsetting extrusion technology on the countersunk square neck bolt is introduced in the paper.

通过两种工艺方案中成型凹模受力情况的分析比较，说明用镦挤工艺生产沉头方颈螺栓，可降低镦锻力，提高模具寿命，保证零件质

A classroom outstood to the south, at both ends of its east and west wings, which conc*ed the whole building if looking down from the sky. It's shape made it so stable that, the new students who saw it at the first sight, all felt that it had struck roots deep into the earth.

65J.Cn 轉發大楼座北朝南，两层，东西两边各有一间教室向南凸出成凹字形，让初次见到这幢大楼的新学生觉得它稳固得生了根。

A classroom outstood to the south, at both ends of its east and west wings, which conc*ed the whole building if looking down from the sky. It's shape made it so stable that, the new students who saw it at the first sight, all felt that it had struck roots deep into the earth.

言/\。65J.Cn轉發大楼座北朝南，两层，东西两边各有一间教室向南凸出成凹字形，让初次见到这幢大楼的新学生觉得它稳固得生了根。

Methods We test the cataract eyes pre-operatively apply with the scotopic blue and white flash(the intensity of which is 2.5logunit lower than that of the standard's)electroretinogram respectively,and analysis the relationship between the corrected visual acuity peripheral retinal(about 10 degree outside the macular fovea) condition 3 months post-operatively and the b wave amplitude of two kinds of F-ERG.

术前采用暗适应蓝、白光(比标准闪光衰减 2 。5 log单位的低强度光)视网膜电流图分别检查拟行白内障手术眼，将术后 3月最佳矫正视力、周边(黄斑中心凹 10°以外)视网膜状况与术前两种 F- ERG b波振幅分别作对比分析。

The transfer structure in Bohai Bay Basin is mainly exhibited in the style of transfer zone, especially in basin or depression, while the transfer fault only militates in the sag-control level.

将渤海湾盆地变换构造分为变换带和变换断层两种类型：一般表现为变换带样式，尤其是在盆地或坳陷层次；而变换断层仅在局部的控凹层次上有所体现。

The transfer structures in Bohai Bay Basin can be divided into two styles of transfer zone and transfer fault according to the connection or non-connection status. The transfer structure in Bohai Bay Basin is mainly exhibited in the style of transfer zone, especially in basin or depression, while the transfer fault only militates in the sag-control level.

将渤海湾盆地变换构造分为变换带和变换断层两种类型：一般表现为变换带样式，尤其是在盆地或坳陷层次；而变换断层仅在局部的控凹层次上有所体现。

The self-aligning ball bearing was invented by It has two rows of balls and a common concave sphered raceway in the outer ring.

这种轴承有两列球，外圈有一个共同的凹型球面滚道。

Zhou eye and eyelid bone loss by the two Aodong is orbital.

眼球及眼睑周国摸得到骨头的两个凹洞，便是眼窝。

Northern and Southern Dynasties period, the eyes a little longer and there is curvature, lips cheeks many grooves, and some long-horned head, and some non-angle, short legs, generally there is only one front, it is also a three-legged, and sometimes, forelegs stretched out that as the fourth leg, the tail cloud volumes than before a number of relief.

南北朝时期，眼睛稍长且有弯度，嘴边两腮多有凹槽，头上有的长角，有的无角，腿短，一般前腿只有一个，所以也是三条腿，有时，前腿伸出一点作为第四条腿，尾部的卷云纹较以前宽了一些。

Aimed at Jetta steering knuckle,the technology of two forging steps in one heat was presented,which combined precision pre-forging by extrusion-belt obliterated extrusion with open finish-forging.

以捷达轿车转向节为研究对象，制定了挤压带式可分凹模闭塞挤压精密预制坯和开式终锻成形相结合的&一火两锻&成形工艺。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了