不固定的

Firstly, the history of ejectors development was introduced, and the formula of ejectors working performance was given and the calculated result was analyzed.

固定结构喷射器的设计是选择在一个给定的工作状态下完成，一经制成就不能改变，喷射器只有在设计状态下工作才能达到最大的效率。

Changed the two screws on the contact plate of the Halo-Vest to one screw,so that the Halo-Vest can fit extension-flexion movement and adapt the reduction of cervical spinal dislocation.Simultaneously,in order not to reduce the fixed funtion of the contact plate,which was designed in fan-shape.

将传统的Halo-Vest架头环与架子接板的双螺丝改为单螺丝，使不能伸屈的头环变为能够伸屈；将头环与接板的咬合面设计成扇形并且有放射状条纹，使头环能牢固地固定在任何一个伸屈角度上。

The use of less rigid systems applied to posterior lumbar fusions proved promising according to the results achieved in both experimental and clinical field.

从临床与实验所得到的结果来看，使用不太坚强的固定系统进行后路腰椎的融合是有良好前景的。

The use of less rigid systems applied to posterior lumbar fusions proed promising according to the results achieed in both experimental and clinical field.

从临床与实验所得到的结果来看，使用不太坚强的固定系统进行后路腰椎的融合是有良好前景的。

Or, rather, it employs two ring-shaped half-pipes that rotate with respect to one another (the lower one remaining fixed while the upper one revolves along with the building). The joints between the half-pipes have rubber seals to stop the contents leaking, and each half-pipe has a vertical pipe connected to it, to introduce or dispose of the fluid concerned.

或者更确切地说，它由两个相对旋转、各只有一半的环形钢管组成（在下面的半个环形钢管固定不动，而在其上的另半个环形钢管则跟着房子一起旋转），两者的接合处由橡胶材料封住以防管内物外漏，此外两个环形钢管各有另一根管道垂直接入，来引入或导出相关的流体物质。

Hand-painted hoardings used to be the norm because labor was cheap and imports were not allowed,' says Ashish Bhasin, a director of Lintas, India, which is compiling a computer database to help advertisers choose from more than 20,000 billboard spots across the country.

Lintas 的部门经理Ashish Bhasin说，手绘广告过去是户外广告的最主要形式，这不仅因为印度的劳动力便宜，还因为政府不允许进口广告牌印刷设备。这家公司正在编制一个帮助广告主从全国2万多个固定广告牌中作挑选的数据库。

Machine set-up time is fast on the Xeikon presses, eliminating the long make-ready times required by traditional methods, and reducing the high fixed costs associated with conventional set-ups that make short runs unaffordable.

机设定的时间快了赛康印刷机，消除长期进行，由传统的方法需要准备时间，并减少固定费用高与常规设置相关的制成品，使短期运行负担不起。

Fluorescent fixtures are the most effective way of maintaining a high level of diffused light but they don't have to be ugly or expensive,according to Dupuy.Inexpensive fluorescent stirp lighting can be set into architectural elements such as coves and valances,providing an economical source of ambient light.He stresses the importance of using color-corrected lamps whenever possible."We can't replicate incandescent light,"he says,"but we can get a warm tone that makes people feel comfortable."

荧光灯固定装置，是最有效的办法，保持高水平的弥漫轻，但他们并没有被丑陋或昂贵的，据dupuy.inexpensive荧光stirp照明可设定成建筑元素，如coves和valances ，提供了一种经济来源周围light.he强调，必须利用彩色校正灯只要有可能，&我们不能复制灯泡&，他说，&但我们能得到许多热情的口气，让人感到舒服&。

Fluorescent fixtures are the most effective way of maintaining a high level of diffused light but they don't have to be ugly or expensive,according to Dupuy.Inexpensive fluorescent stirp lighting can be set into architectural elements such as coves and valances,providing an economical source of ambient light.He stresses the importance of using color-corrected lamps whenever possible."We can't replicate incandescent light,"he says,"but we can get a warm tone that makes people feel comfortable."

荧光灯固定装置，是最有效的方法，保持高水平的弥漫轻，但他们并没有被丑陋或昂贵的，据dupuy.inexpensive荧光stirp照明可设定成建筑元素，如coves和valances ，提供了一种经济来源周围light.he强调，必须利用彩色校正灯只要有可能，&我们不能复制灯泡&，他说，&但我们可以得到许多热情的口气，让人感到舒服&。

Fluorescent fixtures are the most effective way of maintaining a high level of diffused light but they don't have to be ugly or expensive,according to Dupuy.Inexpensive fluorescent stirp lighting can be set into architectural elements such as coves and valances,providing an economical source of ambient light.He stresses the importance of using color-corrected lamps whenever possible."We can't replicate incandescent light,"he says,"but we can get a warm tone that makes people feel comfortable."

荧光灯固定装置，是最有效旳方法，保持高水平的弥漫轻，但他们并没有被丑陋或昂贵的，据dupuy.inexpensive荧光stirp照明可设定成建筑元素，如coves和valances ，提供le─种经济来源周围light.he强调，必须利用彩色校正灯只要有可能，&wo们不能复制灯泡&，他说，&但我们可以得到许多热情的口气，让人感到舒服&。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。