查询词典 beam

A radio telescope's beam depends on the diameter of its dish; the bigger the dish, the narrower the beam.

射电望远镜的光束依赖于抛物面直径的大小：抛物面越大，光束越窄。

The techniques of optical beam induced current have found wide-spread applications in characterizing many semiconductor and optoelectronic devices. A two-photon confocal microscope is adapted for investigating the dynamics of light emitting devices through the contrast mechanisms of two-photon DC and radio frequency optical beam induced current.

摘要 光致电流的技术至今已经广泛的被应用在检测半导体特性以及光学元件上，共焦显微镜搭配双光子激发技术相当适合用来检测LED元件，与单光子激发相较之下，利用脉冲雷射双光子激发术可以使用光子能量小於能隙的长波长光源来完成激发，并且具有高度的空间解析度。

After, they just affected appearance of the spot reconnoitre, a few "understanding circumstance" be just a kind of visit, the real purpose want my grandfather's grandmother settle dispute, so past.can we by no means so of, for the sake of uniform their enforce the law unjust, grandfather's grandmother use their own the method solve, but at that time not know Chen2 Liang2 Yu3 is also falsely it person.so-called"top beam falsely, descend beam slanting" is exactly such......

之后，他们只是做作样子的现场勘查，几次"了解情况"只是一种探视，真正的目的是要我外公外婆息事宁人，就这么过去。可我们决不会就这样的，为了制服他们的执法不公，外公外婆用他们自己的方法去解决，但当时不知陈良宇也是个不正之人。所谓"上梁不正，下梁歪"正是如此。。。。。。

An optical scanning device for scanning tracks of an optical record carrier using a radiation beam, the device including an optical head ( 16 ), defining an optical axis, for converging the radiation beam to a spot when scanning the record carrier; and a rotary arm ( 2 ) for moving the optical head across the record carrier.

一种光学扫描设备，用于利用辐射光束扫描光学记录载体的轨道，该设备包括光头(16)，其限定了光轴，用于在扫描记录载体时将辐射光束会聚为光点；和旋转臂(2)，用于在记录载体上移动光头。

By analyzing the optical characteristic of the off-axis and multi-pass amplified high power solid-state laser facility,using the theory of binary tree tracing and matrix optics,and dividing the system into four parts that include cavity amplification part,boost amplification part,beam reverser and beam output part,the ghost image are analyzed and traced.Main of ghost image that are devastating are given in all parts.

为了有效地避免鬼像破坏，针对采用离轴多程放大的高功率固体激光实验装置的光路特点，利用"光路二叉树"原理和"矩阵光学"方法，将全光路"单元化"为主放大、助推放大、反转器和输出4个部分进行光线追迹和鬼像分析，给出了各个部分的主要鬼像分布。

The construction process are multiple parameters (such as partial-top, arch axis and elevation changes, etc.) real-time monitoring system controlled by the large-span cable crane rigger arch beam, the system pegging Cable-Stayed deduction deduction for arch beam geometric precision and adjust successfully to a high-precision steel pipe arch-arch-long, concrete-filled steel tube ensures the integrity and stability, effective control of the construction process are arch axis geometric precision.

施工过程中多参数控制实时监测系统，采用大跨度的缆索吊机吊运拱肋梁段，斜拉扣挂体系扣定拱肋梁段并调整几何精度，成功地将钢管拱肋高精度合龙成拱，保证了钢管混凝土的整体性和稳定性，有效控制施工过程中拱轴线几何精度。

College of Civil Engineering , Beijing University of Technology, Beijing 100022, China A numerical analysis method for elastic-plastic seismic response of concrete block masonry is presented based on open system for earthquake engineering simulation system. The method simulates concrete block masonry by using equivalent frame model with rigid offsets; the space beam-column elements are simulated by force based nonlinear beam-column elements.

基于地震工程模拟开放系统OpenSees，提出了混凝土砌块砌体结构三维弹塑性地震反应数值分析方法，用带刚域的等效框架模型模拟混凝土砌块砌体结构，空间杆单元采用以力为基础的非线性梁、柱单元。

A deep beam model is developed to simulate load-bearing wall structure which is perpendicular to the edge of excavation, rigorous solution is derived to find the deformation rule of load-bearing wall, Assuming the position of neutral axis at the lower edge of the beam, the restraint effect of foundation and soil can be considered. Damage rule of the wall under the effect of settlement and horizontal extension are discussed.

将垂直于基坑的承重墙结构简化为深梁模型，通过调整深梁中性轴位置来考虑建筑物与地基的共同作用，通过调整E／G的值来考虑砌体材料的各向异性及门门窗开洞情况，用解析法推导了建筑物的变形规律，研究了建筑物在水平拉伸与沉降共同作用下破坏规律。

5M of the super- large cantilever pre-stressed concrete cov- er beam in Wuhan Middle Ring Line West Ring Section Road Rebuilding and Extension Project as the analyzing example,the article simply sets forth the analysis and comparison of the plane and space stress characteristics of the pre-stressed concrete cover beam.

该文以武汉中环线西环段道路改扩建工程中标准宽25.5m的超大悬臂预应力混凝土盖梁为分析对象，简要阐述了预应力混凝土盖梁的平面与空间受力特性的分析比较。

The behavior of post-tensioned steel beam-to-CFT column connections with energy dissipating bars has been investigated analytically and experimentally. Experimental results demonstrated that the connections possess self-centering response, gap opening and closing at the beam-to-column interface, energy dissipation characteristics, and no inelastic or residual deformation. Moreover analytical predictions correlated well with the experimental results.

以理论分析与试验研究预力钢梁接CFT柱接头含消能钢棒之行为，结果显示含消能钢棒预力梁柱接头确实具有自我恢复能力、梁柱接合面缝隙会开启、有消能效果的特性及梁柱没有非弹性行为及残留变形发生；且理论模拟分析能准确预测其行为。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。