光束偏转

The results show, when the prism wedge angle is 4°, the transmitted laser beam changes about 1 μrad as the prism rotates 1′; when the small angle deviation on one side of the minimum deviation angle of each prism is controlled, the scanning range of laser beam in the horizontal and vertical direction is not less than 500 μrad, and the scanning precision of the device is superior to 0.2 μrad.

结果表明：取棱镜棱角α为4°时，棱镜每旋转1′，透射光束变化约1 μrad；分别控制双棱镜在其最小偏向角一侧小角度偏转，可以实现光束在水平方向和垂直方向500 μrad范围内的精确扫描，装置的扫描精度可以达到0.2 μrad。

It is also found that the cross section of a Gaussian beam has the maximal influence on its solitary wave evolution.

同时发现，高斯光束的波形即光束的横截面对其孤波演化的自偏转影响最大。

The second spanwill not fully recover from the initial negative deflection resulting in unwanted soffi t variations.In calculating camber strips to compensate for beam deflection, the entire dead load must be considered including the weight of the formsand the weight of the beam along with any residual camber for the structure.

第二跨度不会完全复原，从最初的负偏转造成不必要索菲笔variations.in计算轮圈狭长，以补偿束偏转，整死负荷，必须考虑包括重量的形式和重量的光束沿任何残余拱结构。

Higher-order space-charge field effect on the self-deflection of a Gaussian beam is numerically investigated.

通过数值模拟的方法，研究了高阶空间电荷场对匹配高斯光束在光伏光折变晶体中自偏转特性的影响。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。