查询词典 luminous beam

Finally, based on the theory of Timoshenko beam, a beam model of this crankshaft is built, which is compared with solid model. The results indicate that this beam model can meet the needs of calculation precision and calculation efficiency. With this beam model, the condition in which real loads are put on the crankshaft is simulated. The displacement curves、velocity curves、acceleration curves of the main journals and the pulley of this crankshaft and torsion vibration curve of the pulley are then gained. With these curves, the dynamic characteristic of the crankshaft is analyzed. The conclusion indicates that this crankshaft has good dynamic characteristic.

最后利用Timoshenko梁理论建立了曲轴的梁单元模型，将此梁单元模型与体单元模型进行了比较，结果表明梁单元模型能够满足精确度和计算效率的要求；利用该梁单元模型，模拟了实际条件下的载荷作用时曲轴的响应，得到了曲轴各主轴颈和皮带轮端的位移、速度、加速度曲线以及皮带轮端的扭转振动曲线，分析了曲轴的动态特性，结论表明该型曲轴具有良好的动态特性。

Experiment 1. Observation of electron beam deflection in the electric field Will voltage electron beam deflection plate to tie the direction switch "is" location, rotating clockwise direction deflection plate voltage Potentiometers (RP2), the electron beam is deflected upward, the greater the voltage between the deflection plate, the electron beam deflection angle the bigger.

实验一。观察电子束在电场中的偏转将电子束偏转板电压方向开关扳到&上正&位置，顺时针方向旋转偏转板电压电位器(RP2)，电子束则向上偏转，偏转板之间电压越大，则电子束偏转的角度越大。

Then after closure, taking steel perimeter beam and perimeter beam rail as slip base, in order of symmetrical balance, hoisting each steel "leaf" respectively up to the installation platforming of steel leaf, again by utilizing the steel perimeter beam, perimeter beam rail and hydraulic thrusting slip equipment, performing the installation for the eight steel leaves until they are closed together.

施工中采用了&一点吊装、平面滑移&的技术进行安装，即采取同一固定点吊装，先将分段钢环梁利用环梁轨道和液压顶推设备滑移，分段逐步滑移和顶推、逐步拼接，直至钢环梁合拢。将合拢后的钢环梁和环梁轨道作为滑移底座，按对称、平衡的顺序将每片钢叶瓣分别吊装至安装平台上，再次利用钢环梁、环梁轨道和液压顶推滑移设备，将8片钢叶瓣逐步安装到位。

In reference to Figure 10.6a,when the beam width is less than the column width ,the effective joint width is the average of the beam width and column width ,but it should not exceed the beam width plus one-half the column depth h on each side of the beam .

在谈到图10.6a ，当光束宽度小于栏宽，有效地联合宽度平均束宽度和栏宽，但它不应超过束宽加一半栏深度h每边的梁。

When a plane wave illuminates the bottom of axicon with ring obstacle, a bottle beam is generated within the maximum non-diffractional distance, and the beam keeps non-diffractional Bessel beam in front and at the back of the Bottle beam.

平面波入射到带有环形障碍物的轴棱锥底面时，将在轴棱锥产生的最大无衍射距离内形成Bottle beam，而在Bottle beam的前后仍然保持无衍射贝塞尔光。

The exterior of the product is of double-globe shape, light-transmittable shade and luminous source is closed in with round high-transparent organic glass shade, and double luminous sources are adopted; the above is a lighting main lamp and a auxiliary light-changeable lamp of cylinder shape is at the below. The entire light fixture full of modern air and practical value is the product with comparatively more favorable ratio of function and price.

本产品外型设计采用双圆形灯具造形，透光罩和光源用高透明度有机玻璃园罩封闭，并采用了双光源系统；一只照明主灯在上，一只变光圆柱副灯在下，当天黑后主副灯同时开始工作，深夜副灯关闭，主灯工作至天亮自动关闭，整个灯具极具现代气派和实用价值，是目前太阳能灯具中有较高性能/价格比的产品。

This bedroom illume environment based on the contemporary bedroom lamps and lanterns design as the research object, according to the author of modern bedroom luminous environment factors in the research and design of the practice of guangdong huayi lighting plants, from the Angle of bedroom luminous environment of modern bedroom, lamps and lanterns is studied, the design of the 21st century with the design and development of guidance and role.

本文以基于居室照明环境的现代居室灯具设计为研究对象，根据笔者对现代居室光环境影响因素的调研以及在广东华艺灯饰厂设计实习的切身体会，从居室光环境的角度，对现代居室灯具设计进行了深入研究，以对21世纪该领域设计开发起到一定的指导和推动作用。

On the basis of field measurements and survey of the natural and artificial housing luminous environment in Beijing and Guangzhou,this paper gives specific proposals for improving housing luminous environment with respect to the illuminance standard level .

本文根据对北京以及广州等的住宅天然光和人工光环境的现场实测调查结果，对改善住宅的光环境的照度标准值水平提出了具体的建议。

The luminous intensity ,luminous flux and color coordinate of high-power white LED have relations with different place.

分析了大功率白色发光二极管的发光强度、光通量和色坐标与测量位置的关系，提出了解决的方法。

Luminous efficacy is the ratio of luminous flux to radiant flux.

发光效率是光通量辐射通量的比例。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。