查询词典 antiaircraft defence

Putting forward a project about the air defence system of optoelectronic integrated missile and antiaircraft gun, this paper discusses an integrative design in laser detecting and firepower attack. Based on optoelectronic detecting, it also introduces a technic approach of firepower guide and undershooting quantity measure of artillery.

介绍了光电／弹炮结合防空系统的重要作用，论述了光电探测和弹炮一体化设计的基本结构和功能，提出了系统综合设计的主要研究内容和关键技术，探索了光电信息火力引导的技术途径并给出了一种基于光电探测的弹丸脱靶量测量技术。

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。