查询词典 beam-focusing

We taught students how to make their own vernier calipers, triple-beam balances and really strong coffee.

我们教导学生如何使用自己的游标卡尺，三束平衡和如何做真正浓咖啡。

A model with some parameters is used to forecasting the beam camber in the construction.

分析表明该方法是有效的，与实测预拱度结果较吻合。

At last, conclusions are made on design, check and settings of camber about cast-in-place beam scaffolds.

最后，本论文对现浇梁支架的设计、验算及预拱度的设置方法进行了总结。

The choice of optimum section does not consider the number of shear connectors required or if beam camber is required.

截面的选作不是考虑到抗剪的连接件（如果梁的挠度需要考虑的话）。

The photo was created using the centuries-old principle of" camera obscura" after a gumball-size hole was opened in the hangar's wall, allowing a tiny beam of light to enter.

这张照片是使用有数世纪历史的「房」理制造出。一个口香糖大小的洞被开凿在飞机棚的墙壁之中，允许一丁点大的光束进入。

A small television camera tube that forms a charge-density image on a photoconductive surface for subsequent electron-beam scanning.

光导摄像管在光电导表面形成电荷聚集图像的一种微小的电视摄像管，用于以后的电子光束扫描

A television camera pickup tube, more sensitive than the iconoscope, that uses a low-velocity electron beam to scan a photoactive mosaic.

正析象管一种运用低带电子来扫描感光栅格的电视摄象管，比光电摄象管更敏感

The theory of sidelobe canceler which is common in radar countermeasures is analyzed and two locations are indicated: 1 Depending on the energy of interference; 2 Limited by the interference's changes. Aiming at sidelob canceler's localizations, the paper proposes the method of integrating beam forming and spatial spectrum estimation to eliminate the interference.

针对旁瓣对消的局限，本文提出了将波束形成技术与空间谱估计技术结合来实现抑制干扰的思路：通过空间谱估计技术对于扰源准确的定位；利用此方位信息波束形成，使空间滤波器在该方位形成零点凹陷，以达到抑制干扰的目的。

Finally, the prospect of cantilever beam system vibration control and some issues which should be solved are pointed out in this paper.

最后，展望了悬臂梁系统振动控制的发展方向，指出以后有待进一步研究的理论与应用问题。

A numerical simulation is deeply conducted on a cantilever beam and the simulation results are compared and analyzed.

结果表明，两类方法在不同的约束条件下各有优点，存在各自的适用范围，是获取大型航空航天结构整体动态特性的有效途径。

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％。