查询词典 beam splitter

In fact, there are a lot of shortcomings such as beams and for larger cross-section of the beam, particularly steel-reinforced self-respect a lot, so the installation of steel beams in the beam must be installed after the end of the template, the beam side of the module should be installed in bars Complete collection experience and qualified after installation.

其实这样有很大的缺点，因为针对与梁截面面积较大的梁，钢筋特别密集，钢筋自重很大，所以在梁钢筋安装必须在梁底模板安装后进行，梁的侧模应在钢筋安装完毕并经验收合格后才安装。

GHz ridge－loaded helical groove slow wave structure with a 20kV electron beam are given and the investigations of the effect of the ridge dimensions and electron beam parameters on the small signal gain are carried out. It is indicated from the calculation results that this type of structure is suitable for use as s SWS of high power, high gain but narrow passband millimeter TWT, of which the 3dB gain bandwidth is 3.4%. In order to increase the bandwidth, the reduction of the ridge gap or the increase of the electron beam current in an allowable range may be useful.

GHz的脊棱加载慢波结构的具体尺寸，并对此结构中小信号增益随脊尺寸的变化情况及电子注参数对其影响进行了研究，计算结果表明：此结构适宜于作为高增益窄带毫米波大功率行波管的慢波线，其3dB增益带宽为3.4%，为了展宽其工作带宽，可以适当减小间隙宽度，也可在一定范围内提高电子注电流。

In fact, beam-to-column web connections are as widespread as flange connections in the steel frames, the principle of strong column weak beam upon the aseismic performance of steel moment resisting frame works as the same in the beam-to-column web connections design.

在钢结构框架中，梁柱腹板连接同翼缘连接一样普遍，而且其刚性连接延性的改善与设计同样迫切和重要；此外，RBS 型梁柱腹板刚性连接的研究非常不足，相关资料及其缺乏。

The unbonded partially prestressed concrete flat-beam frame structure has been used in the practice project in our country, but the aseismatic study of this structure is not perfect at present, study on theory is lagged behind the demand of engineering apply. It has important theoretic meaning and applied value to go deep into the examinational study about the prestressed concrete flat-beam frame structures.This thesis sums up the study of the RC flat-beam frame structure, the PC frame structure, the steel-fiber concrete, the performance of the steel-fiber concrete and its influence to the seismic resistance of the frame.

近年来国内已经开始在实际工程中采用无粘结部分预应力混凝土扁梁框架结构，但是目前对这种结构形式的抗震研究工作还不完善，理论研究已滞后于工程应用的需要，因此深入进行扁梁框架结构的研究，在经济合理的情况下确保该结构的抗震安全性具有重要的理论意义和应用价值。

Such parameters as the percentage of ordinary reinforcment, amounts and configuration of unbonded prestressed tendons, the ratio of span to depth and the loading patterns were considered. Based on the results, the fomula for the eqivalent length of deformation zone on the beams at ultimate were developed. A simple formula was developed for the ultimate mid-span deflection of concrete beams with concept of equivalent length of deformation zone, and the deformation of beam before internal reinforcement yielding was predicted by the traditional formula for the deformation of partically prestressed concrete beam. Then an analytical model was deduced for analyzing the ultimate stress increment in those concrete beams prestressed with external or internal unbonded tendons based on the mid-span deflection.(4) Testes were carried out on a thin-walled concrete box beam presressed with external CFRP tendons to study its short-term performances under uniform load, long-term behaviors under uniform load, and full-time performance under four-point load in turn.

3以体内非预应力钢筋配筋率、体外预应力筋配筋率、体外预应力筋布置形式、预应力度、跨高比、荷载形式等为参数，用非线性分析程序对体预应力筋混凝土梁进行了参数分析，依据分析结果提出了以综合配筋指标和预应力度为参数的等效变形区长度的计算公式，进而提出了基于等效变形区长度的极限挠度计算公式；体内非预应力钢筋屈服前的挠度计算采用常用的部分预应力混凝土梁挠度计算公式；依据试验和非线性数值计算结果，将不同转向块布置形式的体外预应力混凝土梁简化为跨中一个转向块的体外预应力混凝土梁，推导了基于跨中挠度的体外预应力筋应力增量的简化计算公式。

Such parameters as the percentage of ordinary reinforcment, amounts and configuration of unbonded prestressed tendons, the ratio of span to depth and the loading patterns were considered. Based on the results, the fomula for the eqivalent length of deformation zone on the beams at ultimate were developed. A simple formula was developed for the ultimate mid-span deflection of concrete beams with concept of equivalent length of deformation zone, and the deformation of beam before internal reinforcement yielding was predicted by the traditional formula for the deformation of partically prestressed concrete beam. Then an analytical model was deduced for analyzing the ultimate stress increment in those concrete beams prestressed with external or internal unbonded tendons based on the mid-span deflection.(4) Testes were carried out on a thin-walled concrete box beam presressed with external CFRP tendons to study its short-term performances under uniform load, long-term behaviors under uniform load, and full-time performance under four-point load in turn.

3以体内非预应力钢筋配筋率、体外预应力筋配筋率、体外预应力筋布置形式、预应力度、跨高比、荷载形式等为参数，用非线性分析程序对体预应力筋混凝土梁进行了参数分析，依据分析结果提出了以综合配筋指标和预应力度为参数的等活动房效变形区长度的计算公式，进而提出了基于等效变形区长度的极限挠度计算公式；体内非预应力钢筋屈服前的挠度计算采用常用的部分预应力混凝土梁挠度计算公式；依据试验和非线性数值计算结果，将不同转向块布置形式的体外预应力混凝土梁简化为跨中一个转向块的体外预应力混凝土梁，推导了基于跨中挠度的体外预应力筋应力增量的简化计算公式。

The spectroscope is a non-stop of the beam type. with quite sensitive, even one nucleus can be measured, set-up that is a beam diagnosis reliable instrument for the cooling beam in ESR, now it becomes a precise mass spectroscope for nuclear reaction and nuclear spectroscopy study.

该谱仪为非阻挡型极灵敏的，甚至可测出一个裸核的测量设备，是冷却存储环束流诊断的可靠仪器，又是一台作核反应和核谱学研究的精密质量测定的谱仪。

Furthermore,the beam quality on far field is discussed.Temperature rise,thermal deformation,wavefront distortion and beam quality of fused quartz(SiO_2) window and white bijou(Al_2O_3) window irradiated by the annulus beam are simulated as examples.

以空心环形光束为例，计算了熔融石英(SiO2)和白宝石(Al2O3)两种常用窗口的温升分布、热变形、波前相差和光束质量，分析了冷却、辐照时间、光强分布的空间梯度和各种材料参数对光束质量的影响。

The beam propagation is improved by vacuum the downstream of the beam drift tube, and the beam can transport over 60cm.

虚火花电子束，电子束的直径小，方向性好，适合用于小型化自由电子激光器。

Using one detector and few electronic elements, the invention realizes detecting azimuth and pitch angle of incident beam in high speed, and large field of view. Beam-splitting for incident beam is not needed.

本发明中使用一个探测器及少量电子元件就能实现对入射光束的方位和俯仰角进行高速度、大视域的检测，并不需要对入射光束进行分束。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"