激光束

The investigations into this remote area were difficult and the findings yielded many interesting theories, ranging from fairly plausible ideas about the arrival of a stony asteroid or comet, to more exotic hypotheses involving black holes, antimatter, mirror matter, volcanoes, ball lightning, and "geometeors," to really bizarre notions about crippled alien spaceships, laser beams from other planets and death rays secretly invented by Nikola Tesla.

这个偏远地区的困难和调查的结果产生了许多有趣的理论，从大约一个石质的小行星或彗星的到来比较可行的想法，更涉及黑洞，反物质，镜子的问题，火山，球状闪电，和异国情调的假设等&geometeors，&约削弱外来飞船真正奇怪的观念，激光束从其他行星和死亡射线秘密尼古拉特斯拉发明。

Laser beam enters this arm here, encounters prism, goes this way.

激光束从这里进来，遇到棱镜，走这条路线。

A laser collimator is even better for this step — just center the laser beam on the primary's center spot.

激光校准器做这一步工作更好——只要把激光束照射到主镜的中点上就行了。

We use continuous wave laser beam to pump nonlinear crystals and successfully prepared two-photon polarization entangled states with high brightness and entanglement degree.

我们利用连续波激光束泵浦非线性晶体的自发参量下转换过程制备出了双光子偏振纠缠态，其纠缠源亮度和纠缠度都接近于国际上同类研究的领光水平。

Use the mouse cursor to drag and drop the laser emitters around and the laser beam will be moves as well.

使用鼠标光标移动到拖放激光发射器和周围的激光束将举动，以及。

In this dissertation, based on the beam propagation equation in the free-space, the hyperbolic-fit mothed is used to calculate the M2- factor of Gaussian beams passing through a spherically aberrated lens for the first time.

本论文根据自由空间中光束的传输方程，利用多点拟合的方法，通过数值计算，首次研究了激光束通过球差透镜后的M~2因子随球差的变化规律，并用M~2因子、桶中功率和K参数作为光束质量评价参数，讨论了透镜的像差、遮拦比等对激光光束质量的影响。

The experiment was performed at the Asterix IV iodine laser with a prepulse 5 ns before the main pulse. Under optimum focusing conditions for main pulse and prepulse the X-ray laser beam splits into two beamlets along the target surface at its output end of the 2.5 cm long plasma column. The splitting was still observed when the prepulse alone was defocused.

实验发现在抽运激光主、预脉冲最佳聚焦条件下， X射线激光束在2.5 cm长的线状等离子体输出端沿靶面方向分裂成两束；在抽运预脉冲单独散焦条件下，仍然观察到这一分裂现象；但是当抽运主、预脉冲同时散焦时，这一分裂现象逐渐消失并获得了半宽度只有40 μm的非常窄的近场像。

A circle around Wario's head will transform him into a helmet-wearing spaceman who can fire powerful laser beams.

一个圆圈周围瓦里奥的头部将改变他变成了一个头盔货架谁可以火灾强大的激光束。

At high powers the nonlinear part of the index of refraction becomes important and causes a higher index of refraction in the center of the laser beam where the laser is brighter than at the edges causing a feedback that focuses the laser even more.

在高权力，非线性部分的折射率变得很重要的原因和较高的折射率为中心的激光束，在激光亮度比是在边缘，造成了反馈，重点激光甚至更多。

A two cell SBS phase conjugating mirror pumped by pulsed Nd∶YAG laser was experimentally investigated. After returned to YAG amplifer and coupled out by a polariser, SBS output beam had the characteristics of duration tunability and good quality with near diffraction limited far field divergence angle.

对脉冲Nd：YAG激光器抽运的双池受激布里渊散射相位共轭镜进行了实验研究，将相位共轭镜后向反射光束馈入YAG放大级，经放大级放大，由偏振片耦合输出的激光束具有高质量、脉宽可调的特点，远场发散角接近1倍衍射极限。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。