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AIM To study the application of air sac obstetric apparatus in natural vaginal labor and its role in avoiding the conventional cesarean section in abnormal position of fetal head and the breech presentation with normal weight i nfants.

目的 通过对胎头位置异常120例及臀位60例施行气囊助产术研究，可使多数按常规处理应行剖宫产术的胎头位置异常者转化为阴道分娩，还能顺利解决正常体质量之臀位经阴道分娩。

And Air Survey Section takes aerial photographs on a regular basis and for various purposes.

测绘处的摄影及航空测量小组，定期为不同目的拍摄照片。

The Photogrammetric and Air Survey Section takes aerial photographs on a regular basis and for various purposes.

测绘处的摄影及航空测量小组，定期为不同目的拍摄照片。我打算学摄影。

If the observer is at a great distance compared to the other dimensions of the experiment and the rays are nearly perpendicular to the reflecting surfaces, then the path difference between the two waves (corresponding to r1-r2 in the preceding section) is just twice the thickness d of the air wedge at each point.

如果观察者比起实验装置来讲距离较远而且光线较接近于垂直反射于表面，那么这两光波的光程差(在前面所述的相应部分 r1-r2)就仅仅是空气劈尖在该点处的厚度 d 的两倍。

The observer is at a great distance compared to the other dimensions of the experiment and the rays are nearly perpendicular to the reflecting surfaces, then the path difference between the two waves (corresponding to r1-r2 in the preceding section) is just twice the thickness d of the air wedge at each point.

如果观察者比起实验装置来讲距离较远而且光线较接近于垂直反射于表面，那么这两光波的光程差(在前面所述的相应部分 r1-r2)就仅仅是空气劈尖在该点处的厚度 d 的两倍。

A helicopter rotor hub for use in an air-driven helicopter comprises a section of a spherical stainless steel ball attached to the end of a hollow rotor shaft.

直升机旋翼枢纽用于空气驱动直升机组成部分球形不锈钢球重视的结尾空心转子轴。

Because "Still allocated to Star" the time also had section of distances, because opposite had neurosis's man every day 5 spots the news broadcast was very much loud, because in the town airedale were getting more and more, had discovered the dog big cry also made a sound, in brief, occasionally has not sent falls asleep again, also has not sent 6 reminded NONO collapsed quickly...

因为离《星尚》拨出的时间还有一段距离，因为对面的一个有精神病的男人每天5点把新闻广播开的很响，因为镇上的大狗越来越多，发现了狗大的叫声也响，总之，偶没发再睡着，也没发6点醒来NONO快崩溃了。。。

It is notable, however, that only about 15% of the 75% is available unless air is also in contact with the underside of the wing or airfoil section.

这是显着的，不过，只有约15 ％的75 ％是可用，除非空气，也是在接触底机翼或翼型节。

And look at the airfoil or wing section of our airplane in such a way that we will have a little better understanding of how our aircraft flies.

并期待在翼型或机翼的一段，我们的飞机在这样一种方式，我们将有少许更好地了解如何我们的飞机苍蝇。

Products have excellent characteristics of beauty, heat insulating, sound-proofing, airtightness, antiweatherability, anti-chemical and antiimpacting, including large cross-section, big wall-thickness, many cavities, integral whole window, soft-hard extrusion and Europe style.

产品除具有防腐耐侯、隔音隔热、密封保温、抗冲美观等优良性能外，还具有大断面、大壁厚、多腔室、一体窗、软硬共挤、通配性强和欧式风格等特点。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。