查询词典 rifle

Incurrent research, aiming at the rupture problem engendered in the shooting process of acertain 5.56mm automatic rifle, the strain and stress distributions on the cartridge caseunder the action of axial pull have been analyzed. Based on the theories of elastic-plasticmechanics and contact mechanics, a mathematic and physical model of the cartridge-caseand chamber system has been set up; and based on the platform of the general softwarepackage APDL of ANSYS for finite element analysis, a parameterized model of thecartridge-case and chamber system has also been established. The method for nonlinearFEA has been adopted to analyze the stress distribution on the entire cartridge-case andchamber system, and the method of contact element has been employed to investigate thecontact stress between the cartridge case and chamber, and then the influences of frictioncoefficient and locking space on the static and dynamic stress and strain response of thecartridge case and chamber to the action of power gas have also been discussed. On thebasis of a lot of numerical tests, a kind of element Plane13, which is concentrated incoupled computation of heat and construction, has been used finally to simulate thetransient response of the cartridge-case and chamber system to the power gas. Throughloading the temporary thermal characteristics of explosive gas in the procedure of emulate, the corresponding transient thermal stress distributed on the entire system under thecombined load of transient thermal stress and transient pressure has been obtained. Owingto these comprehensive considerations, the numerical results obtained in this paperrepresent the actual situations comparatively exactly.

本文针对某5.56mm自动步枪在工作中出现断壳的问题，分析了弹壳在轴向拉力作用下的应力应变；基于弹塑性力学及接触理论，建立了弹壳弹膛系统的数学、物理学模型，在通用有限元ANSYS软件的参数化建模工具APDL平台上，建立了弹壳弹膛系统的参数化模型；采用非线性有限元法计算了弹壳弹膛系统的整体应力，引入接触单元法分析弹壳和弹膛的接触压力，探讨了在不同的摩擦系数和不同的闭锁间隙对弹壳弹膛静、动态响应的影响；本文进行了大量的尝试，最后确定采用热、结构耦合单元Plane13，在计算中加载了火药气体的温度历程，成功的获得了弹壳弹膛系统在瞬态的热载荷和瞬态的压力载荷同时作用下弹壳弹膛系统的热应力数值解，考虑因素全面，比较真实的反映了弹壳弹膛系统在火药气体压力和热载荷下作用的情况。

Composed of long takes of indirect gazes and oppressively alienated temps morts (where an eclectic assembly of anonymous residents alternately stare out the window, smoke a cigarette, handle their rifle, voyeuristically peep, awkwardly flirt, become inebriated, and even mischievously set on fire laundry that has been hanging on a clothesline), the fragmented, collage-like portraits of the tenants are interstitially connected through the recurring image of the building's dimly lit hallways, a visual metaphor for a culture adrift and in transition - a conduit to an undefined destination.

塔尔齐名的东欧诗电影导演，他的大部分电影都没有对白，只用近乎静默的长镜头去探索人物内心的孤独和绝望，展现后共产主义的东欧社会巨变下人们精神世界的空虚，94年的《走廊》无疑是这种风格的代表作，其中的长镜头堪称能与同年那部赫赫有名的《撒旦探戈》相媲美。巴塔斯与俄罗斯的安德烈。索科洛夫，匈牙利的贝拉。塔尔共同被称为继承塔尔科夫斯基诗电影风格的当代重要导演，他们的作品或多或少都受到了塔尔科夫斯基的影响，无论是在电影艺术语言还是在作品的主题上，但三人之间又有所不同。

They purchased a Kalashnikov assault rifle and two Karl Gustav guns and trained on their own.

他们购买了卡拉什尼科夫冲锋枪和两名卡尔古斯塔夫枪和训练他们自己。

The safety is somewhat reminiscent in its appearance to that of Kalashnikov AK assault rifle, although internal design of the trigger unit is different, and there's no provisions for full automatic fire.

安全是有点类似于在其外观的卡拉什尼科夫AK 步枪说，虽然触发单位的内部设计是不同的，而且有充分自动消防的规定。

If the enemy gets in close before firing starts and the initial phase sees the two sides engage in a heavy exchange of hand grenades, the rifle firing is apt to develop raggedly, even though the defending line is on higher ground and the incoming grenades are doing little damage.

如果敌军在我方开火前抵近并在交战的第一阶段出现双方互掷手榴弹的局面，那么即使防线位于高地、袭来的手榴弹威力不大，也不利于发扬步枪火力。

It was recognized that a semi-automatic rifle was needed to rearm the Army.

这是认识到，半自动步枪，需要重新武装军队。

French rifle platoons of the first line have retreated to the Sart farm and continue to fight.

一线的法军步枪排开始撤退到萨尔农场并继续战斗。

Dipendra, wearing a battle-dress uniform and wielding several weapons, including an M-16 assault rifle, lurched into a family gathering in the main L-shaped drawing room of the palace, Shahi said.

沙伊称迪彭德拉当时身穿野战军的制服，挥舞着包括一支M-16突击步枪在内的数种武器，闯入正在王宫L形画室内举行的家族聚会。

Again he fought it, and still it persisted , till for very relief he opened his rifle to unconvince

他于是又跟它斗争，而它又缠住他不放，直到为了摆脱它，他又打开枪膛打消自己的念头。

Again he fought it, and still it persisted, till for very relief he opened his rifle to unconvince himself.

他于是又跟它斗争，而它又缠住他不放，直到为了摆脱它，他又打开枪膛打消自己的念头。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。