查询词典 beam

Then the time-dependent resistance models of the timber beam and timber column are calculated in which the empirical formula in China is used for above- ground,exposed timber beam and column and the decay depth model for under-ground timber in Australia is adepted the timber embedding wall.

然后据此推导了各类构件的腐朽抗力衰减模型，采用国内经验公式推导了抗弯腐朽木梁和地面上木柱的随机时变抗力模型；采用澳大利亚的地下木材的腐朽深度—时间模型，推导了初始抗力为正态分布的随机变量的墙内木柱的随机时变抗压承载力模型，并采用该模型对某历史结构的木梁进行了剩余寿命预测。

But the real focus of shoring in hard rock, the rock Zaocheng a trapezoidal shape of right-angle look, and then insert-beam, and right-angle ladder to fully close some acute angle, using principles of mechanics into a half-beam as the base.

而真正的重心撑在坚硬岩石里，岩石凿成了形似直角梯形的样子，然后插入飞梁，使其与直角梯形锐角部分充分接近，利用力学原理半插飞梁为基。

When conventional radiotherapy of nasopharyngeal carcinoma is practiced with the facio-neck field and inferior-neck-supraclavicular field by the half-beam technique, it is confirmed that the dose-overlap region at the match-plane is smaller than the whole-beam technique.

背景 近年来放射治疗剂量学研究表明，鼻咽癌应用面颈联合野与下颈切线野放射治疗时，与全束照射技术相比，半束照射技术的照射野衔接处剂量重叠区较小，理论上可能降低放射性神经损伤的发生率。

Conclusions. The application of the half-beam irradiation for radiotherapy of NPC may reduce the incidence of RILCNP in the long term compared with the whole-beam technique, but the results had no significant effects.

应用半束放射治疗技术衔接面颈联合野与下颈前切线野治疗鼻咽癌，与全束照射相比，本研究随访期内后组颅神经损伤发生率稍低，但差别尚不显著。

Recently, diffractive optical elements have been applied to various aspects, such as the pick-up head of DVD, beam shaping and beam dividing, etc.

摘要绕射光学元件，近来应用日渐广泛，可应用於DVD读写头，及光束整型，光束分离等。

Recently, diffractive optical elements have been applied to various aspects, such as the pick-up head of DVD, beam shaping and beam dividing, etc.

绕射光学元件，近来应用日渐广泛，可应用於DVD读写头，及光束整型、光束分离等。

This paper introduces a kind of new anticollision beam,hold cage type absorption power anticollision beam .

介绍了一种新型的防撞梁—托罐式吸能防撞梁，它不仅能把过卷的大部分能量吸收掉，使撞击的损失减小，而且还能把容器托住。

Result proof, this method can hold taller beam gain in direction of many expectation signal, in interference at the same time signal direction forms very deep beam to cave.

结果证实，该方法能够在多个期望信号方向保持较高波束增益，同时在干扰信号方向形成很深的波束凹陷。

Slit mechanism can limit the beam angle, hold excrescent light and select wavelength on Beam Line. The opening width of the exit slit determines bandwidth of wavelength to be measured, and has a direct influence on resolution and photon flux of optical system.

狭缝装置在光束线上起着限定光束张角，阻挡杂散光，波长选择等作用，狭缝的宽度决定了待测辐射的波长带宽，直接影响着光学系统的分辨率和光通量。

Experimental results of new type joints between the column and the steel beam of concrete-filled rectangular steel tubular under reversed cyclic loads are presented. The earthquake resistant capacity of the joint is influenced by infilled concrete, stiffener length and relative dimensions of column and beam.

介绍了新型方钢管混凝土柱与钢梁节点在低周反复荷载作用下的试验结果，分析了内填混凝土、加劲肋长度和梁柱相对尺寸等对节点抗震性能的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。