查询词典 beam-focusing

This method doesn't need beam deflection device and can change the reference beam incidence angle with mechanical movement platform only. And the accuracy of system is not getting lower.

这种方法不需要光束偏转器件，只需要机械运动平台，仅通过平台的移动，就可以实现参考光束入射角度的变化，而且寻址的精确性并未降低。

We present a set of random number generator based on a quantum mechanical source,which is the process of splitting a beam of photons on a polarizing beam splitter.

报道了一种基于偏振光量子的随机效应产生的随机源，这种方法利用了单个偏振光子在偏振分束镜表现出来的量子随机性。

Compared with that the beam splitter is based on multimode waveguide of triangular lattice PBG with the same parameter,the beam splitter in this paper has much shorter size and higher output efficiency.

因而本文所设计的分束器具有更小的器件尺寸和更高的传输效率，易于大规模集成的实现，在未来的集成光路中具有广泛的应用价值。

Taking the effect of non-radial bearings in the beam-ends into consideration, the rigid-crossbeam method was used to calculate the load lateral distribution of curved beam bridge with non-radial bearings as to get more accurate results.

用刚性横梁法计算非径向支承弯梁桥的荷载横向分布，在计算单梁挠度时考虑了主梁梁端非径向支承的影响，得到了更为精确的结果，根据影响参数，编制了相应的表格，方便工程设计人员查用。

One is based on cantilever beam and the other is pure bending moment beam.

摘 要：目前电阻应变计参数的测量装置主要分为悬臂梁式和纯弯矩梁式两种。

Description of bottle beam and reconstruction of Bessel beam based on diffraction integral theory .

衍射理论对局域空心光束及无衍射光束重建的描述。

Using bipartition model of electron transport proposed by applicants, combined with Fermi-Eyges theory, a new pencil beam model, hybrid electron pencil beam model, was proposed.

应用申请人提出和发展的电子输运两群理论并结合Fermi-Eyges理论，提出了一个新的笔束模型—电子混合笔束模型。

A simpler scheme of interference canceler is proposed based on beam space analyzing. It is shown by the numerical results that such scheme can overcome the shortcoming of smart antennas. The time to demodulate desired user is reduced. It also reduce the complexity to realize such an AA/IC system with hardware. In the chapter 5, a multi-beam antenna system with three and six fixed beams are analyzed.

第四章综合考虑了智能天线的空间滤波和级联干扰删除器的作用，提出利用智能天线的空间滤波特性进一步简化干扰删除器的设计方案，数值分析结果表明该方案不但可以克服天线空间滤波的不足，同时缩短了用户信息解调的时间，降低了硬件实现的复杂度。

By taking the energy integral as Lyapunov function,it is proved that nonlinear transverse vibrations of the beam undergoing uniform extension or retrieval are stable when there are not controlling moment in the central rigid body and driving force on the beam,according to the partial stable theorem.

利用能量积分构造Lyapunov函数，根据部分变量稳定性定理，证明了当中心刚体无控制力矩，附件驱动力为零时，梁在等速伸展或收缩时的横向非线性振动是稳定的。

By taking the energy integral as Lyapunov function, it is proved that nonlinear transverse vibrations of the beam undergoing uniform extension or retrieval are stable when there are not controlling moment in the central rigid body and driving force on the beam, according to the partial stable theorem.

利用能量积分构造Lyapunov函数，根据部分变量稳定性定理，证明等速伸展或收缩梁的横向非线性振动稳定。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。