弹

The two new projectiles with soft and empty tines have the capability of high execution and low inbreaking.

这两种设计完成的新弹型分别为软尖弹和空尖弹。

By deep analyzing the tested value of the concrete strength with the rebound method and combining with the inverse regression theory,a rebound strength curve of three-parameter inverse regression is put forward.

基于对回弹法检测混凝土强度被检测量，结合逆回归理论提出了一种逆回归三参数回弹法测强曲线模型，将随机性较大的混凝土回弹值作为因变量，随机性较小的抗压强度值作为自变量，并且增加了一个位置参数，更加符合工程的实际情况。

Aimed at the angle legging defect existed in the acoustic location of high speed moving object by smart mine,the estimate of object flying track and coefficient recursion algorithm in flying module are developed in the paper.

文中针对智能雷弹对高速运动目标声定位存在一定角滞后的缺陷，开展了雷弹对目标的飞行轨迹的估计以及对飞行模型中的系数的递推算法，进而对单自由度和双自由度雷弹的拦截方位进行了预测。

In Zigui Country, the numbers of Nematoda, Acarina and Collembola individuals were not much affected by habitat and elevation, while in Wanxian Country, the numbers of Acarina and Collembola were by elevation. In Shennongjia region, distribution of Nematoda varied significantly with vegetation. Acarina and Collembola were widely distributed in various soil layers under different vegetation, whereas the number of Acarina in the litter layer varied significantly with habitat and elevation.

对线虫、螨类和弹尾目的数量差异分析表明，秭归地区三个类群受植被、海拔影响不大；万县地区海拔对蝉蜡、弹尾目影响较大；神农架地区线虫分布受植被影响较大，蜡类和弹尾目在不同植被和土层广布，而该地区枯枝落叶层中螨类数量随植被、海拔变化显著。

Because users can find icons more rapidly than they can text, use of the circular popup can be faster than a normal popup, and because the popup appears where the user's focus is, they can even be faster than a normal toolbar.

因为用户可以更迅速地找到图标比他们的文本，循环使用，可弹出速度比正常弹出，因为弹出显示，用户的重点是，他们甚至可以高于正常工具栏。

As the sensitivity matrix got by numerical differentiation in elastoplastic problem can not ensure the efficiency and stability in back analysis computation, an integration formula of sensitivity matrix is presented, in which sensitivity matrix can be obtained analytically.

针对弹塑性反分析差分敏度矩阵计算的效率和稳定性难以保证的情况，通过对弹塑性反分析敏度矩阵计算的全面分析和探讨，给出了弹塑性状态下反分析敏度矩阵的积分表达式。

Further, compared with the standard response spectrum of our country, the results showed that the values of the elasto-plastic acceleration response spectra in the long period cycles are overhigh, damping attenuation coefficients are also larger.

进一步比较弹塑性反应谱和我国规范得到的反应谱，结果显示规范的加速度反应谱在长周期段谱值过大，阻尼衰减系数也较大。基于单质点弹塑性地震分析的结果，在我国规范反应谱公式的基础上提出的隔震结构弹塑性反应谱公式。

The principles of dynamic photoelasticity are explained, with commonly-used experimental equipment described.

介绍动光弹基本原理和常用的实验装置，阐述动光弹应用于爆破理论研究的手段，总结出主应力分离的几种方法，综述目前国内动光弹技术的主要研究方向。

By experimental study of the situation with high-velocity photogram, not only the initial speed and the decline law of it have been determined, but also many problems have been solved, such as the influence of choke on initial speed, the influence of wad on flying shots, the attitude change of flying wad, the process of the wad separated from the shots, and so on.

通过高速摄影实验研究，不仅较为准确地测出了初速大小和速度衰减规律，而且弄清了不同锥度的喉缩对初速的影响、弹托对弹子飞行的影响、弹托飞行姿态的变化特点及弹托脱离弹子的过程等问题。

According to the working principle of spring-tooth plastic film collecting machine,this article established spring-tooth s preconcerted track equation,which provided a basis for analysis of force,design optimization of slide track and so on.

文章针对弹齿式收膜机的工作原理，对弹齿的预选轨迹用数学方程进行描述，为后续的弹齿受力分析、滑道轨迹的设计优化等提供了理论基础，具有重要的意义。

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。