由于凹面与凸面之间没有磨损，螺母可以重复使用。
Because there is no abrasion between the concave and convex, the nut is reusable.
下表所列为像差校正全息凹面光栅。
These are aberration-corrected holographic concave gratings.
纵向通道沿所述凹面延伸。
试验结果表明，凹面阴极发射电子束会聚明显。
The results demonstrate that the electron beams emitted from concave cathode are focused obviously.
六种颜色的油墨按艺术布局填充的凹面图形标志。
Debossed logo with 6 colour ink fill as per artwork and layouts.
介绍利用ZEMAX软件设计平场全息凹面光栅方法。
A method which use ZEMAX software to design flat field holographic concave grating is given in this article.
目的：确定正常个体中上下眼睑周围泪河凹面的昼夜变化。
PURPOSE: To determine diurnal variation of tear menisci around upper and lower eyelids in normal subjects.
用圆柱和放大的叶片做模型，模拟叶片前缘和叶盆凹面的流动。
Cylinder and enlarged blades are used as test models for simulating the leading edge and concave surface of the blade.
红血球的双凹面圆盘形可以增加它的表面积，以利气体的扩散。
Red blood cell with a biconcave disc shape is to provide a large surface area to volume ratio to facilitate the diffusion of gases.
采用平场凹面全息光栅和多通道检测器设计了一个小型的色散系统。
Design of a dispersing system based on a multi channel detector and a flat field holographic concave grating.
当上螺母的凹面与之锁紧时，其效果与用一个锤子敲进一楔子的效果完全相同。
When the concave upper nut is tightened, the effect produced is exactly the same as that produced by a hammer driving in a wedge.
凹面镜如果是从圆球上切下来的，圆球的直径会是凹面镜焦距的四倍。
The diameter of a sphere is four times the focal length of a concave mirror cut from it.
介绍了一种通过微细加工技术即二次X射线曝光制作凹面光栅的方法。
The technique of fabricating concave gratings in PMMA by double X-ray exposures is described.
提出一种利用ZEMAX软件设计、分析评价平场全息凹面光栅的方法。
A method which USES ZEMAX software to design, analyse and evaluate flat field holographic concave grating is given in the paper.
与凹面换能器相比较，动态聚焦阵系统具有较好的分辨率和较高的灵敏度。
In comparison with a concave transducer, the dynamically focused array system provides better resolution and higher sensitivity.
这里凹面型的几何一个在当地的中心曲率的工件和刀具中心所在站在同一边。
Here concave type of geometry is the one in which the local center of curvature of workpiece and tool center lie on the same side.
对于冲击面为凹面的冲击射流，远场噪声总声压级对喷嘴位置改变非常敏感。
For a jet impinging onto a concave plate, the OASPL of the far-field noise is quite sensitive to position variations of the nozzle.
在获得我想要的形状之后，我把我的模型上了石膏，从而创造一个凹面的模具。
After achieving the desired shape, I cast my model in plaster to create a concave mould.
犯罪预防尤如一面模具，它的凸面是社会安全保障，它的凹面是个人自由保护。
It is like a mould, which convex is the guratee of the security to society, and whose concave is the protection of th…
为分析搅拌头轴肩底面轮廓对材料流动的影响，分别建立了平面轴肩和凹面轴肩。
The flat and concave shoulder was set up to study the influence of the profile of concave shoulder on the flow of aluminum.
我已经上了两个小时的几何课，一直等着教授结束这个关于同心圆和凹面图的讲座。
I had been sitting in geometry class for two hours, waiting for the professor to conclude his lecture about concentric circles and concaved figures.
Wright系统的核是一个标准化的4x12 x 24英寸的带凹面的混凝土或玻璃砖块。
At the core of Wright's system was a standardized 4x12x24-inch concrete or glass block with concave edges.
输尿管起始于两个肾脏的凹面(也就是肾门)，长20到30厘米，可能会受到一些病症的影响。
It arises on both sides from the concave surface of the kidney known as the hilum. It is between 20 and 30cm long and can be affected by a number of disorders.
介绍一种从罗兰圆结构出发，利用ZEMAX光学软件设计平场全息凹面光栅的方法。
A method which is based on Rowland mount and use ZEMAX software to design flat field holographic concave grating is given in this article.
回转式破碎机的破碎功能是通过偏心回转辊和固定凹面破碎板组成的破碎腔来实现的。
Crushing functions of a rotary crusher are achieved by its crushing cavity consisting of an eccentric rotary roller arid a fixed notch crushing plate.
球面滚子轴承是双列，自我包含的单位，包括坚实的外圈与凹面滚，固体和内圈与辊每桶笼。
Spherical roller bearings are double-row, self-containing units that comprise solid outer rings with a concave raceway, solid inner rings and barrel rollers with cages.
实验结果表明，利用凹面砧拔长，锻件心部能够获得更大的变形量，对空洞的压合效果更好。
Results show that cogging using concave anvil can increase the deformation at the center part of the billet and can press holes more effectively.
实验结果表明，利用凹面砧拔长，锻件心部能够获得更大的变形量，对空洞的压合效果更好。
Results show that cogging using concave anvil can increase the deformation at the center part of the billet and can press holes more effectively.
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