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Designs of two high intensity cyclotrons are studied in these two chapters, one is 50MeV-5mA H〓 superconducting Sector Focused Cyclotron, the other is 17MeV-2mA H〓 Sector Focused Cyclotron.

第三章首先简单介绍了用于扇聚焦回旋加速器的各种注入方法以及在轴向注入时所采用的不同种类的静电偏转镜。

You have to do the measurings only when both the digital comparator and the axis in measure focus bar are perfectly steady and exactly in the same points.

你不得不做测量,当数字比较器和轴的聚焦条在同一点是确定的、稳定的。

By a piece of type-II critical phase matching biaxial crystal LBO for extra-cavity and for the compound system of telescope and Lens second-harmonic generation,green laser at 532 nm was achieved with average power of 40.6 mW,pulse duration of 16 ns, and peak power of 181 W.

先采用双凸透镜组合成的望远镜系统对1 063 nm的红外激光进行扩束,再对该光束聚焦,最后经双轴晶体LBO倍频后,得到了平均功率为40.6 mW,脉冲宽度为16 ns,重复频率为14 kHz,峰值功率高达181 W的绿光激光输出,1063 nm→532 nm的转换效率高达58%。

Both the curvature of the crystalline lens surface and the thickness change at this time[3], and a clear image of this target is formed on the retina.

此时水晶体的前缘曲率以及其在光轴上的长度会产生改变,而使得我们所注视的物体能清楚的聚焦在视网膜上。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

I'm running my simile to an extreme.

我比喻得过头了。