查询词典 beam splitter

Standard clean room processing was used to prepare the paddle sample. The experiment can be operated by using the electrostatic deflection on the "paddle"cantilever beam and then measure the deposited thin metal film materials on top of it. The optical interference technique was used to measure the deflection of beam with the force.

此微桨型试件是藉由标准的黄光制作流程所完成，悬臂梁设计成梯形主要是为了提供均匀平面应力，以避免传统平行梁应力分布不均匀的缺点，实验时沉积金属薄膜材料於微桨型试件上后，再使用静电力驱动微桨型结构使其产生偏移量，并且搭配光学干涉仪器，用於量测试件受到外力作用下之平面偏移的数据。

Based on the objective lens and voice coil motor of the current DVD pickup head,according to photobleaching three-dimensional (3D) optical information storage's theory of two-photon absorption,the Ti∶sapphire femtosecond pulse laser was used as written optical beam and reading optical beam of two-photon three-dimensional optical storage voice coil motor was carried through multiplayer choice, and the storage and readout experimental study of binary format code with two-photon photobleaching in the new photobleaching material consisting of stilbene derivant was conducted.

基于现有的DVD光头物镜与音圈电机，根据光致漂白的双光子吸收三维光信息存储原理，以钛蓝宝石飞秒脉冲激光进行双光子光信息写入和读出，利用音圈电机进行选层，在新型光致漂白材料二苯乙烯衍生物中进行光致漂白二进制编码信息的存储和读出实验研究；实现了三层光信息存储，信息点间距和信息层间距分别为4 μm和15 μm；用Matlab软件读出信息的信号强度并对其进行了识别，识别结果与写入的二进制编码信息完全一致。

F iber B ragg grat ing st rain senso rs w ere characterized and embedded into the p re2 st ressed concrete beam of HuL an river bridge. Embedding techniques and p ro tect ivemethods suitable fo r civil engineering w ere p resented. W ith FBG senso rs, internal st rains of the concrete beam w ere deter2 m ined during the st ressing p rocess.

采用与土木工程施工特点相适应的传感器安装工艺与保护方法，将光纤B ragg 光栅埋于正在建设的呼兰河大桥预应力箱梁中，测量了预应力张拉过程中混凝土结构内部的应变变化。

Based on the study of model test of post-tensioned prestressed concrete box-shaped beam, the feasibility and correctness of this structure being applied for pillar wharf with bridge crane is tested and verified, which provides reference for calculation of post-tensioned prestressed box-shaped beam of bridge crane design This structure can be applied for port construction at large water amplitude area rationally

港口桥吊后张预应力起重机梁的模型试验研究重庆交通学院王多银陈嘉勤摘要通过对后张预应力混凝土箱梁模型试验研究，验证该结构用于桥吊墩式码头的可行性，寻求预应力桥吊箱梁的理论计算依据，并验证其正确性，为后张预应力桥吊箱梁的设计提供参考计算方法，使该结构能科学

Based on discussion of attached plate and analysis of beam elements calculation results, a experience formula is deduced for the calculation of a beam element's inertial moment.

基于对梁元带板问题的讨论及对大量梁元的实际计算结果分析，推导出该梁元惯性矩计算的经验公式。

The paper introduces the control of camber in the construction of non prestressed continuous box beam, appearance and development of cracks of bottom plate of box beam.

介绍非预应力连续箱梁施工中预拱度的控制，以及箱梁底板裂缝的出现和开展，并分析其成因，从而确保箱梁施工质量满足设计和施工规范要求。

Ruled out the traditional side of beam-type filter press cake will be left on the side of the beam, Guan Nai Fai clamping plate when the plate can not be close together and lead to leakage problems.

排除了传统式侧梁型压滤机泥饼会残留在侧梁上，关板时滤板夹住泥块无法密合而导致泄漏的问题。

It is treated with six fields (Anterior, Posterior, four obliques) positioned 60° apart around the circumference of the patient, each dual field is made up of two component beams, pointing ±15° with respect to the horizontal. The nominal energy of electron beam produced by Mevatron Ⅻ is 3MeV, and the patient is treated at a distance of 3 meters. Using Capintec dosemeter and PS-033 electron beam chamber for measurement, one moniter unit of radiation is equivalent to 0.0127cGy. Measurement of electron energy by Kodak X-omat-V verification film inside the Rando phantom at 100 cm SSD was 3.70MeV, electron energy measured at 3 meters was 3.51MeV. X-ray contamination was measured as 9.5% per six dual fields.

此种方法分别使用六个双照野，由病人的前、后、左前、右前、左后、右后各间隔60度共六个方向照射，每一双照野由水平向上和向下15度照射；荣民总医院选择3MeV电子射束来治疗病人，治疗距离为3公尺，利用擬人假体及柯达X-omat-V验证片实验得电子射束初始能量从3.7Mev变为3.51MeV，六个双照野之X光污染共达9.5%，使用Capintec剂量表及PS-033型电子射束用游离腔测量六个双照野，每一监测单位相当於0.00127 cGy。

The method of primary beam and auxiliary beam possessing common nulls and the method of three beams with sliding time window.

另外，文中还探讨了天线扫描运动的补偿方法和多相干脉冲运动补偿方法。

Through systematic study, it is found that the ion dose is another important parameter in Ion Beam Manipulation and it has significant influence on the strutrual phase transition. If the dose is precisely controlled, the structural phase transition could be traced under a quasi-continuous way. Consequently, many new phenomena have been discovered by Ion Beam Manipulation.

一、研究了离子束剂量在离子束操纵技术中的重要影响；研究表明离子束剂量可以精确地控制，使材料中的结构演变过程接近于连续地变化，因此可以对离子束诱导的结构相变进行准连续状态的跟踪，发现了许多新的现象。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。