射出角

The InGaAs/GaAs/AlGaAs strained layer quantum well lasers were grown by molecular beam epitaxy. Ridge waveguide InGaAs/GaAs/AlGaAs strained layer quantum well lasers operating in the fundamental transverse mode up to 140 mW at a wavelength of 980 nm were fabricated.

利用分子束外延生长了InGaAs/GaAs/AlGaAs应变量子阱激光器材料并研制出基横模输出功率大于140 mW，激射波长为980 nm的脊形波导应变量子阱激光器，其微分量子效率为0.8 W/A，垂直和平行结平面方向远场发散角分别为28°和6.8°。

Basing on ice formation rate of AgI at different temperatures after "37" anti-aircraft shell exploding, multiple relationship of two gradient temperature, as well as exploding time, angle, vertical height, contour interval and slanting distance of anti-aircraft artillery 83 rainfall bomb, the ideal dissemination radios and launch angle of ideal density were calculated, and the suitable bullet number and operating method were analyzed, for the purpose of using reasonable method of firing and the least person rain ball to achieve best precipitation enhancement effect.

利用&三七&高炮炮弹爆炸后AgI在不同温度下的成冰率及前后2个温度梯度倍数关系，以及高炮83型增雨弹引信自炸时间和射角及其所达垂直高度、水平距离、斜距等资料，计算出理想浓度的理想弥散半径和发射角度，从而分析得出在人工增雨作业中适宜的用弹量和作业方法，以期利用合理的射击方法，使用最少的人雨弹，达到最佳的增雨效果。

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。