直

The non-spherical lens is another shaping system that is used to collimate the beam of LD, and the theoretic performance could be perfect.

非球面柱透镜是另一类特殊结构的柱透镜，在用于半导体激光束准直时，理论上可以达到完全准直的效果。

Among this technique, we use a simple, economical and practical collimation method-single lens collimation method to collimate semiconductor laser beam, and use moving objective scanning method to make laser point scan on the lofting plane.

其中用单透镜准直法对有大发散角的半导体激光光束成功地实现了准直，既简单又经济实用；用平移物镜法实现了激光点的扫描。

By using two groups of cylindrical lenses perpendicular to each other, the marking shape window of semiconductor laser is imaged and rectangle and this imagery is then collimate d to infinite by collimating objective.

利用互相垂直的两组圆柱面镜把半导体激光器的条形窗口成像为矩形。再用球面准直物镜组把此象"准直"到"无限远"。该系统把激光器发出的发散光束压缩到在±0.0025弧度内出射光。两组柱面镜的同种倍率互为倒

But the accuracy of laser collimator is hard to increase for the influenceto laser beam in the atmosphere.

但激光束在大气中的准直还是受很多因素的影响而使得激光准直仪的精度难以提高。

The model of this collimator set on the ray trace theory. The designing and optimization way are created.

通过该方法设计的准直系统，在实际应用中达到了与传统非球面柱面镜相同的准直效果。

The additional coupling loss is calculated, and the formulae of return loss of C-Lens collimator are given.

本文计算了C-Lens准直器的附加耦合损耗以及给出了准直器回波损耗的计算公式。

Based on existing creep theory and the spline function collocation point method, a numerical method was developed to calculate the transient creep strain and stress of a rotor of steam turbine to be aligned.

以往由于缺乏转子钢在直轴温度范围内的蠕变特性实验数据以及对大轴温度场、应力场和应变场的深入理论分析，直轴工艺还带有较大的经验性。

I vowed that I'd never again be without a conk, and I never was for many years.

我当时还发誓再也不能没有直发了，而我确实很多年一直留有直发。

To straighten hair by a chemical process conk .

使卷发变直通过化学程序把弄直；把卷曲的头发弄直

To straighten by a chemical process; conk.

使卷发变直通过化学程序把弄直；把卷曲的头发弄直

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。