查询词典 spring beam

The ECR ion source,beam line from ECR to SFC and electrostatic inflector have been designed and installed to increase ion species and beam intensity.

安装了ECR离子源及其外注入系统后，增加了离子种类、提高了束流强度。

The whole process of moment-curvature relationship for RC beam was analyzed with the relative depth of compressive zone of the beam about 0.15 using the strip integral method and computer programme. The relationships between moment and strain of concrete, strain of steel, depth of compressive zone were got.

采用条带积分法，应用计算机编程，对相对受压区高度为0.15左右的钢筋混凝土梁的弯矩－曲率关系进行全过程分析，得出弯矩－曲率关系曲线，并给出弯矩与混凝土应变、钢筋应变及梁的相对受压区高度的对应关系。

Based on the Bernoulli-Euler beam\'s plane cross-section hypothesis under flexure and Vlasov\'s rigid contour premise under non-uniform torsion,a spatial thin-walled beam element with 2 nodes and 14 DOF is developed by independently interpolating bend angles about two prime inertial axes of cross section and warp angle with an interior node set at the midpoint of the element length and the goal is achieved.

根据Bernoulli-Euler梁弯曲变形的平截面变形假定和Vlasov约束扭转的刚周边假定，通过设置单元内部结点，对弯曲转角和翘曲角采用独立插值的方法，建立了2结点14自由度的空间梁元，实现了上述目标，并将其应用到结构的非线性分析中。

Property comparison of optical thin films prepared by E-beam,ion assisted deposition and ion beam sputtering.

电子束、离子辅助和离子束溅射三种工艺对光学薄膜性能的影响。

With the ever-increasing needs of high power diode laser source, it is important to obtain symmetric diode laser beam with high power so that a kind of beam-shaping technique with isosceles right-angled prism group has been used to achieve this aim.

随着半导体激光器应用的日益广泛，半导体激光的光束质量在二维方向极不均衡的特点限制了它的应用范围。采用一种等腰直角棱镜组的整形方法，可实现二维方向的光束质量均匀化。

A strength model of end-plate was presented by modifying the strength model of the T-stub which was set up by Kulak in 1987 and by presenting two hypotheses about the stress distribution on the beam section located at the connection of beam and end-plate.

对传统T形件连接强度模型作了修正，建立了端板连接节点的端板强度模型。提出了节点处梁端截面应力分布的两个假设，给出了端板屈服弯矩的近似计算方法。

Laser Beam Propagation and Beam Quality Control.

激光束的传输变换与质量控制。

The definition of beam width is significant for the quality of laser beam.

结果表明不同定义的束腰宽度是不同的。

In turn, more sectors will be read in a single revolution of the disk when the laser beam is scanning the outer portion of the spiraled track than when the beam is scanning the inner portion.

所以，要是盘片旋转一整圈，那么激光柱在电子扫描螺旋形磁道外边时读到的扇区个数要比里边多。

This invention relates to an improved laser beam useful in material surface processing and an apparatus for producing the improved laser beam.

本发明涉及一种在材料的表面处理中很有用的改善的激光束以及一种产生改善的激光束的装置。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。