查询词典 focusing unit

Single beam focusing lens antenna is the basis and crux of the multiple beam focusing horn lens antenna.

本文作者提供了喇叭天线的设计程序，并用它设计了单波束点聚焦透镜天线中的喇叭天线。

Focusing the laser (10 ns,1 064 nm) through K9 glass is used to study the relation between the damage appearance of the glass and the focusing position of the high intensity ns laser pulse.

利用脉宽为10 ns、波长为1064 nm的激光脉冲聚焦通过K9玻璃的方法，研究了玻璃的损伤形貌与高强度纳秒激光脉冲聚焦位置的关系。

When the output power of the CO_2 laser machine reaches 100 W on average, the round focusing point can be formed on the surface of glass by the focusing light path.

CO2激光器平均输出功率为100W时，通过聚焦光路在玻璃表面形成圆型的聚焦点。

Focusing control system : stepper motor and precision lead screw drive system, automated focusing.

调焦系统：采用步进电机及精密丝杠传动系统，并实现自动调焦。

A fast direction of arrival estimation method of wideband sources has been proposed. A new techniques is presented to compute the focusing matrix. It needs no direction pre-estimation or matrix eigendecomposition, so the focusing matrices are insensitive to the signals' direction and the computation is simple.

提出了一种新的聚焦矩阵的计算方法，该方法不需要进行角度预估计，也不需要进行任何矩阵特征值分解，对信号方向不敏感，运算量小。

The focusing beam radius' ratio between the telescope lens compound system and the single lens increases via length (70~400mm) increasing, and the maximum ratio is 30, meanwhile the ratio between the telescope-lens compound system and the single lens decreases via length (70-400 mm) shorting, but the maximum difference of the focusing beam radius' is 0.043μm.

结果表明，随着距离(70~400mm)的增加，两者的聚焦效果相差增大，最大为30倍；随着距离(70~400mm)的减小，两者的聚焦效果相差减小；经望远镜和薄聚焦透镜组合系统聚焦的高斯光束束腰处光斑半径随距离(70~400mm)变化的最大值为0.043μm。

Time reversal is an unique self-focusing technique for spatial and temporal focusing of sound in unknown environments.

时反法是一种新颖的自适应聚焦技术，它可以使声信号在未知环境下实现时空聚焦。

In this research, the micro optical pick-up head is composed of a micro optical bench and a focusing lens mounted on a two-axis actuator. The study of focusing lenses is the major topic in this thesis.

在本研究中，微光学读取头是由微光学平台及固定在双轴致动器的聚焦透镜所组成的，其中的聚焦透镜正是本论文研究的主要方向。

It is explained that focusing effects for the compound system was better than lens′ and the compound system focusing approach appropriate to crystal properties was discussed.

解释了该聚焦方法比单一薄透镜效果明显好的原因，并指出了这种聚焦方法的使用对象。

Then the experimental setup for the focusing performance is described, and the focusing performance of the PMMA compound high-energy X-ray lens is tested under the inradiation of the 8 keV monochromatic X-ray.

最后给出8 keV单色X射线辐射下，PMMA材料X射线组合透镜的聚焦性能的测试结果，对实际测试结果进行了分析和讨论，得出结论，焦距等参量与理论计算结果基本吻合。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。