查询词典 beams

We addressed the systematic errors originated from the synchronized photoelectron beams, which desorbs quite a few gaseous molecules adsorbed on the vacuum chamber walls, in mesuring the base pressure of the large storage ring of Beijing electron positron collider.

当BEPCⅡ储存环的束流突然丢失时，真空计和离子泵的压力测量值都先有一个瞬时的减小，之后才逐渐降低到本底压力。

5Study on vehicle-bridge coupled vibration program of multi-beams bridgeThe vehicle-bridge coupled vibration equation is detruded on the base of three axisvehicle,and the vehicle-bridge coupled vibration program is established with iteration method,which is used for analyzing the dynamic response of the assembly slab bridge.

5板桥车-桥耦合振动程序研究以三轴车辆为例建立车-桥耦合振动方程，采用分离迭代法，编制了板桥车-桥耦合振动程序，并以实例验证了其计算结果的正确性，为装配式板桥动力响应分析提供计算平台。

Based on the experience of compiling the program, the paper discussed some topics which should been taken note of while compiling a plane member structure FEM program that took the geometric nonlinearity into account as well as the material nonlinearity. With this program, the paper analyzed the effect of the factors on the anti-bending capability of externally prestressed concrete beams and come into some useful conclusions. The factors included: the rate of ordinary steel bars, the initial prestress of the external tendons, the shape of the external tendons, the position and number of deviators and the number of segments.

结合编程实践，本文讨论了编写考虑几何非线性和材料非线性的平面杆系有限元程序应该注意的一些问题，并应用所编的程序，对体外预应力混凝土梁的抗弯性能进行了普通钢筋配筋率、体外索的初始张拉力、体外索的配筋形式、转向块的布置和节段的数目等五个影响因素的分析，得出了一些有益的结论。

The flexural capacity, deformation and failure modes of beams with different parameters can be analyzed using the program, such as types of plan and prestressed tendons(extrenal prestessed tendons, internal unbonded prestressed tendons, internal bonded prestressed tendons), jacking and effective stress in external prestressed tendons, configuration of the deviators, properties of tendon, ratio of span to effective depth of the beam and load pattern, initial loading state at tendon jacking, etc.(3) Nonlinear behaviors of the concrete beam prestressed with external or internal unbonded tendons were studied by the program developed.

本程序可以对任意截面型式的预应力(体外预应力筋、体内无粘结预应力筋、体内有粘结预应力筋)混凝土梁和普通钢筋混凝土梁进行非线性全过程数值分析计算，程序可以就转向块的布置方式、体外预应力筋纵断面形状、体外筋有效预应力的大小及材性、张拉预应力筋时梁的持荷状态等因素对体外预应力混凝土梁在外荷载作用下的强度、变形特征、破坏模式等的影响进行分析研究。

The formulas of the statistical average radius of wave-front circle edge dislocations had been developed for the coaxes beams that had different beam diamantes and crossbeams in the cases that the averaging time was shorter t

标 签 激光传输波前位错短期平均大气湍流高斯谢尔光束 Laser propagation Wave front Dislocations Short-term averaging Atmospheric turbulence Gaussian-Shell beam

He overlaid the ceiling beams, doorframes, walls and doors of the temple with gold, and he carved cherubim on the walls.

又用金子贴殿和殿的楝梁，门槛，墙壁，门扇。墙上雕刻基路伯。

He overlaid the ceiling beams, doorframes, walls and doors of the temple with gold, and he carved cherubim on the walls.

又用金子贴殿和殿的栋梁，门槛，墙壁，门扇。墙上雕刻基路伯。

Calculation results show that general elastics supported continuous beams methods can obtain better precision and can be applied in engineering design.

计算结果表明：采用广义弹性支承连续梁法对矮肋斜T梁桥进行受力性能分析能取得较好的计算精度，并可用于工程设计当中。

It was typically indirect effect that the following variations induced in the progenies of endosperms implanted by heavy ion beams were discovered. 1 In comparison with control, there were very high differences in biological trait, anti-oxidation enzyme activity, MDA content and protein content, chromosome aberration rate and micro-nucleus rate in M1 generation. 2 Shorter stem variants and purple stem mutants were analyzed by RAPD and AFLP. The analytic results showed that the sequences of their DNA were changed, so those variations were not physiological damage only. And there were differences among M2 generation plants of the same sort of variants or mutants, it was indicated that M2 generation may be in disjunction.

M1代的生物学性状、幼苗的抗氧化酶活性、MDA含量、蛋白质含量和染色体畸变率及微核率等发生了较大的变化。2）对其矮杆变异株和紫色茎杆突变体（M2）做RAPD和AFLP分子鉴定等研究，结果显示了矮杆变异体和紫色茎杆突变体的DNA序列发生了改变，而非仅仅产生生理损伤；同一种变异体或突变体，在M2代单株间也存在着明显的差异，表明它们可能还处于分离状态。

The seed embryoes were penetrated by 〓 ion beams of 75 MeV/u and the seed endosperms were implanted by the proper degraded 〓 ions, and soluble protein of the seedling in M1 generation was divided into 5 sections to analyze their changes at different molecular weight. 1 In comparison with control, the relative content of the second section (molecular weight is heavier in all sections) of all irradiated materials got down, while the relative content of the fifth section (molecular weight is the lightest) of those went up. 2 The penetrating seeds made the relative content of the first section (molecular weight is the heaviest) and the third section (mid-molecular weight) drop, while the fourth section went up. Moreover, the changes of the third section and the fourth section of the penetrated materials were clearly different from those of the implanted materials. 3 The difference between implanted embryo and implanted endosperm existed in deeper dropping of the first section and higher rising of the fifth section on relative content of soluble protein of the latter. 4 On irradiated materials at lower doses, there were exceptional changes of soluble protein, it may be thought that there was excited effect of low dose.

1.75MeV／u 〓O〓离子经过适当降能后注入小麦种子的不同部位和贯穿整个种子，对其M1代幼苗的可溶性蛋白质组分以及电泳中不同区段蛋白质组分相对含量加以分析，结果表明：1）同对照相比，随着辐照剂量的增加，所有辐照材料第二区段蛋白质组分的相对含量下降；而第五区段蛋白质组分的相对含量升高。2）种子的贯穿处理，同时也引起第一区段和第三区段蛋白质组分相对含量的下降以及第四区段的升高；其中第三、四区段的变化明显区别于注入效应。3）注入胚和胚乳的区别在于后者第一区段蛋白质组分相对含量的较大下降和第五区段的较大提高。4）小剂量辐照的材料，可溶性蛋白质组分的变化异常，可能与低剂量辐射兴奋效应有关。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷