炮群

In order to make more damage to more dangerous targets, some details are discussed for solving the assignment problem by using the Hungarian Method.

在使防空高炮群对威胁度大的目标造成大的毁伤分配准则下，研究了利用匈牙利法求解指派问题时的具体方法。

According to Assignment problem and its solution that contain strict theoretic proof and practical value , the thesis sets up assignment model of antiaircraft artillery group's firepower optimal allotment in the case of one-to-one-gunshot and multiply-to-one gunshot, discusses the solution of the model, analyzes practical application of the model, and primarily validate the model through the example.

依据有严格理论证明和实用价值的指派问题及其解法，构建了一对一射击和多对一射击情形下的高炮群火力优化分配的指派模型，探讨了该模型的求解，分析了该模型的实际应用，并通过具体实例对该模型进行了初步验证。

Salvoes of a group of artillery are the most used striking means in the battlefield. Many factors, such as the dynamic characteristics and random disturbance, can raise the positioning errors and synchronization errors, which will inevitably reduce the positioning accuracy of artillery.

火炮群射击是火炮主要的作战手段，由于各火炮特性的分散及随机干扰等多种因素的影响，在射击时会产生火炮与火炮之间的运动位置误差，出现运动不同步的现象，进而影响火炮的定位精度。

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。