弹道的

The results of interior ballistic theoretical simulationindicates that the single PSS charge application need propellants be provided with upperburning rate, adopting PSS and traditional model frame propellants commix charge is apractical applied technique approach.. By optimizing the PSS model frame parameter, wecan obtain "flat roof" domino offect with better even peak value "double peak" p-tcurve. Comparing with current 19 hole propellants charge with the best increasing burningsurface characteristic, the muzzle velocity of projectile can be enhanced about 55m/s, andthe instruct pressure efficiency can be enhanced about 5.7％.

内弹道理论模拟结果表明，PSS发射药单一装药的应用，需要发射药具有较高的燃烧速度，采用PSS发射药与传统药型的混合装药，是目前PSS发射药实际应用的技术途径，通过药型参数的优化可获得"平台"效应更好的等峰值的"双峰型"P～t曲线，与现有增面性最好的19孔发射药装药相比，弹丸初速可提高55m／s左右，示压效率高5.7％左右。

Though the armored Cadillac DeVille incorporates many advanced features - from ballistic steel and glass, to a special run-flat wheel and tire system, and a self-sealing fuel tank - it is also designed to be inconspicuous and not draw undue attention to its occupants.

虽然装甲款的凯迪拉克Deville集成了许多先进的功能-从弹道钢铁和玻璃，一个特别的运行单位车轮和轮胎系统，自密封油箱-它的设计也将不起眼的，而不是过度注意它的居住者。

Based on researchful results of two former students, we take the influences of thermochemistry reaction, mutual disturb and unsymmetrical instance into account. Secondly, the paper simulates the transient thermal response of projectile according to the simulation software, and discuss the ablation regulation when the projectile is in different initial velocity, in different shape, in different angle of attack condition and in different material condition. Thirdly, the effect on the aerodynamic characteristic and the outer ballistic characteristic after the ablation of hypersonic projectile has been analyzed.

在前面两位师兄研究成果的基础上，研究了超高速弹箭组合体在考虑热化学反应、存在攻角影响下的的气动加烧蚀数学模型；然后对不同条件下的烧蚀过程进行计算，分析和总结出在不同外形和不同材料条件下弹体和弹翼的烧蚀规律；紧接着分析了在不同的烧蚀情况下，它对飞行中弹箭的气动力和外弹道特性的影响，从而为今后的超高速弹箭设计提供指导和帮助。

The right humanity immerses in the heaven of heavens which oneself creates, forgets oneself, just like the astronomy expected many times such as well as the Earth history once performed the dissimilarity, came from the nameless interspace because the instantaneous interspace erupted the volume giant planetoid which formed, was raiding by the extremely high speed to our sky-blue Earth, moreover the track probably passed through the precise trajectory computation to resemble, 100% collisions to the Earth, launched in the entire human history the only globalization uniformization integration to save Earth's great campaign from this, but after all turned danger into safety, the humanity more and more discovered, each other was such is familiar with such need each other, therefore humanityAfter separates mutually repelled mutually has conquered mutually for several million years, finally under the rational impel has realized the final return unification, from this time on also did not have the language, the custom, the belief difference again, again also did not have the region, the skin color, consciousness barrier, the humanity finally to construct belonged to each earthman's Earth to unify the extremely happy heaven!

正当人类沉浸在自己一手缔造的极乐世界中，忘乎所以的时候，正如多次天文预料的那样以及地球历史曾经上演的一样，一颗来自无名星际间由于瞬间的星际爆发所形成的体积巨大的小行星，正以极高的时速袭向我们蔚蓝色的地球，而且轨道好像经过精确弹道计算似的，百分之百的撞向地球，由此展开了整个人类历史上唯一一次全球化一致化整体化拯救地球的伟大战役，而当一切都化险为夷之后，人类越来越发现，彼此是这样的熟悉这样的需要彼此，于是人类在互相分离互相排斥互相征服了几百万年之后，终于在理性的感召下实现了最终的回归统一，从此再也没有了语言、风俗、信仰的差别，再也没有了地域、肤色、意识的障碍，人类终于构建成了属于每一个地球人的地球统一极乐天堂！

This paper briefly introduces the current development of supercavitating torpedoes in the world,and explains some confusable terms,including cavity,supercavitation, natural supercavitation ,air supercavitation and cavity number.

在简要回顾各国超空泡鱼雷发展概况的基础上，解释了几个易混淆的与空泡有关的新术语(空泡、超空泡、自然超空泡、通气超空泡和空泡数)，分析了超空泡的形成机理和特点，详细阐述超空泡鱼雷在总体结构和性能、动力推进、控制系统和弹道形式等方面的技术特点，概括超空泡鱼雷与普通鱼雷在结构外形、流体动力布局、系统组成和工作特性等方面的不同之处。

By the test of the burning characteristic of nitramine propellant, it was found that sent the pressure and burning rate curve varied almost linearly.

通过对硝胺发射药燃烧特性的测试，发现硝胺发射药的燃速压力曲线几乎是一条直线；由落锤冲击实验，认为硝胺发射药的低温力学性能还需进一步改善；根据弹道试验所得到的低温感硝胺发射药的初速和膛压结果，以及对试验火炮的烧蚀结果，证明了低温感硝胺发射药可作为中大口径火炮装药的可行性

The Iranians will also likely retaliate by attacking Israel's cities with ballistic missiles (possibly topped with chemical or biological warheads); by prodding its local clients, Hezbollah and Hamas, to unleash their own armories against Israel; and by activating international Muslim terrorist networks against Israeli and Jewish - and possibly American - targets worldwide (though the Iranians may at the last moment be wary of provoking American military involvement).

伊朗人也将有可能进行报复，攻击以色列的城市与弹道飞弹（可能突破与化学或生物武器的弹头）；由厂商，其本地客户，真主党和哈马斯，释放他们自己的armories对以色列，并通过激活国际穆斯林恐怖网络的针对以色列和犹太人-可能美国-世界各地的目标（虽然伊朗人可能在最后时刻警惕的挑衅，美国军事介入）。

We claimed victory in the battle in an unnecessarily messy brawl that saw our medium vessels chase down the enemy--a battle that probably could have been less messy had we carefully negotiated the seas and the wind direction, because Empire, like other Total War games before it, physically models the ballistics of all missile weapons, so the crafty British ships turned at odd angles, requiring our ships to turn in reaction to lay broadsides, and occasionally landing fire on our own ships.

我们胜利的战斗中的不必要的混乱斗殴的看到我们的中型船只大通下跌的敌人-一场可能本来可以减少混乱了认真的谈判，我们的海洋和风向，因为帝国，像其他共计战争游戏面前，身体的弹道模型的所有导弹武器，所以狡猾的英国船只变成奇数的角度，需要把我们的船在反应奠定broadsides ，偶尔在我们到达火灾自己的船只。

According to the structure of aircraft carrier and existing anti-ship missile warhead,the structural target with ribbings and experimental semi-armor-piercing warhead were designed with geometer similar principle.The processes of warhead penetrating the ribbings structural and homogeneous targets were investigated experimentally in the shooting range,and the end-point trajectory parameters in hitting conditions and the breakage mode of target were gained.

以舰船典型筋板结构为目标，设计了带加强筋的结构靶，并用模拟实验弹体，对单层带加强筋的结构靶进行了斜侵彻实验，通过天幕靶和高速运动分析系统的测量，得到了两种倾斜着靶条件下不同着靶位置的靶前、靶后弹道参数；通过对靶板破坏结果的分析，得到实验弹靶条件下加强筋结构靶的破坏模式。

With such ballistic characteristics, this rifle nicely fills the niche between light, rapid-firing (semi-automatic) sniper rifles in 7.62mm caliber (which have limited capabilities against material targets, heavy body armor and limited range) and heavy, powerful 12.7mm /.50 caliber anti-material rifles which have great destruction potential but usually are too big and heavy (average weight is 14 kg / 30lbs) for rapid deployment and maneuver warfare.

在这样的弹道特性，很好地填补这个步枪与轻，快速射击在7.62毫米口径狙击步枪的利基（已对实物指标，重型防弹衣和有限的范围），重型，强大的12.7有限的能力/。50口径的反物质步枪有巨大的破坏潜力，但往往过大，重（平均体重为14公斤/三零磅）迅速部署和机动作战。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。