激光束

It has been found that the existance of metalic or non-metalic oxides in the coating and the roughness of the coating on the metal surface are the main factors influencing the absorptivity of laser beam.

研究发现，金属或非金属氧化物的存在以及金属表面涂层的粗糙度是提高激光束能量吸收率的主要影响因素。

And two ameliorative methods, which are important to improve the facture quality, are brought up: amelioration of instruments and reshaping the laser beam. As its advantages of exactitude and cheapness, this new method can be widely used in the area of semiconductor's minuteness machining.

通过对腐蚀孔的横向与底面形状的分析，从改进实验装置和进行激光束空间整形2方面提出了改进的方法，对提高掩膜投影法的加工精度具有重要意义。

Pulsed laser induced ripple damage on an aluminum film mirror has been investigated by experiments.

用透镜将脉冲激光束聚焦在铝膜镜面上，在部分样品的激光损伤边缘区，出现波纹状损伤形貌。

It is shown from the results that the transition process of carbon from graphite to surrounding metal matrix at the moment of laser action is one of the most important controlling links in laser hardening.

研究表明，在激光束作用瞬间碳从石墨向周围金属基体的转移过程是激光淬硬最重要的控制环节之一。

The quest for monopoly, monopsony, and control. That's yesterday's high ground, and China's focused like a laser beam on it.

对垄断和完全控制的追求那已经是上一时期的优势，但中国仍像激光束般盯着这些。

A new technique of real-time laser beam quality measurement is presented. It is based on a multiplane imaging method which consists of plate reflecting mirrors and enables simultaneous imaging of ten planes with various optical paths on a single charge coupled device array.

提出一种新型光束质量实时测量技术，该技术主要基于由平板反射镜组成的多平面成像系统，一次性将激光束腰附近2倍瑞利距离内的多个光斑成像在同一个平面上，用CCD相机获取这些光斑的光强分布图样。

The narrowness of the beam is an advantage which enables it to perform special functions .

激光束的狭窄性是使它能够完成特殊功能的一个优点。

The narrowness of the beam is an advantage which enables it to perform special functions.

激光束的狭隘性是使它能够完成特殊功能的一个优点。

A general Godunov finite difference schemes-WENO (Weighted Essentially Non-Oscillatory) schemes which have fifth-order accuracy is used to perform a numerical calculation for 2-dimensional axis symmetrical laser-supported plasma flow field under laser ablated solid target.

采用具有五阶精度的WENO差分格式和简易等离子体状态方程模型对激光与等离子体相互作用的复杂物理过程进行了数值计算，分析了激光束能量在等离子体区中的吸收、屏蔽效应等动态耦合规律以及激光支持等离子体前驱冲击波传播。

CD disk is an optical disc, on which data is recorded as a set of dips in the surface.

CD盘是一种光盘，其数据以一组坑的形式记录在光盘表面上，当激光束扫过这些坑的时候，返回的失真程度就代表了这些数据。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。