弹

A new cyclic constitutive model for sands which can describe the deformation behavior of sands under combined variation of principal stress axes and magnitudes was developed based on the above physical fundamentals. And its effectiveness under the complex stress paths including cyclic rotation of principal stress axes is verified by a good comparison of model simulation with test results for sands.

2基于对应力主轴循环旋转条件下砂土的基本变形规律的认识，吸收和借鉴已有弹塑性本构模型研究成果中的合理概念和建模方法，建立了一个可合理描述应力主轴循环旋转效应及主应力幅值大小与应力主轴方向循环耦变效应的砂土弹塑性本构模型，并对该模型在包含应力主轴旋转的复杂循环应力路径下的有效性进行了验证。

In order to predict the principal stress in the direction of zero principal strain correctly, it is necessary to understand elastic-plastic behavior of soil during load-decreasing process.

研究土在减载和往复荷载下的弹塑性特性，建立反映土减载屈服的弹塑性本构模型，具有重要的学术价值和工程意义。

Recurrence formula is obtained for the dynamic analysis of plastoelastic structure .

推导了弹塑性结构动力分析的递推公式，提出了一种简单有效的弹塑性结构主动控制算法。

He plays many styles – classical, jazz, gospel, reggae – and all of them well.

他会弹许多类型的音乐——古典、爵士、福音、雷鬼——而且都弹得很好。

For me, I think it's too slim to have good reload.

对我来说，1911的弹夹确实在换弹夹时因为太细而有一些不方便。

The research results indicate that retroflexion moment is the radical causation of ricochet phenomena.

利用理论分析和数值模拟方法研究动能弹斜侵彻时的跳弹现象均达到了较好的精度。

Richter: There are so many things I want to play.

李希特：比起别人都在弹的曲子，有很多东西是我更想弹的。

Police instruments: baton, baton gun, riot control grenade, tear bomb, shoot and catch met, strong light flashlight, floodlight, lamp for special work, cuff, anklet, police line, searchlight, road block etc.

警用械具：警棍、防暴枪、防暴弹、摧泪弹、射捕网、强光手电筒、探照灯、特种作业专用灯具、手铐、脚镣、警戒带、搜索灯、路障等。

To realize the low cost and high precision of general weapons, the methods such as adding simple guidance equipment or end amended equipment have been often used to design general weapon flat of cannonball, mortar cannonball, aircraft bomb, rocket missile, etc.

基于炮弹、迫弹、航弹、火箭弹以及反坦克导弹等常规武器平台，加装简易制导装置或末修装置，实现常规兵器的低成本、高精度、制导化，日益成为当今兵器发展的主流方向。

This paper discusses a new meshing scheme about armor-piercing core and sabot of long rod AP, which adopts the structure of variational tooth clearance.

本文探讨了杆式穿甲弹的一种弹芯与弹托的新型啮合方案，即采用变齿隙结构方案。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。