气囊

After lighting the firearms set off, the solid nitrogen grain is quick to gasify, the nitrogen of large quantity gasifies, the large quantity nitrogen spirit blows to rise the air sac immediately, and in the mighty impact dint under, the air sac hurtles to open the cover on the steer device but the safety launches.

点火器引爆之后，固态氮粒迅速气化，大量氮气化，大量氮气立即吹涨气囊，并在强大的冲击力之下，气囊冲开方向盘上的盖而安全展开。

The development status of domestic safety airbag and their technical yarn was introduced.

介绍了我国安全气囊袋及安全气囊袋用纤维的发展现状。

At present main products are dual SRS airbags, four SRS airbag system.

目前主要产品有双SRS气囊系统，四SRS安全气囊系统。

The basic approach of protecting people from being hurt or killed in an accident is to improve crashworthiness of vehicles. This paper starts with discussing theories and methods for vehicle passive safety design, which included experiential methods, analytic methods, multi-body dynamics methods, crash test methods and the finite element method. Emphasis will be paid to the basic FEM theories and algorithms of impact problems. Topics discussed include the governing equation, element discretization, hourglass control, time integration, material model, shell element algorithms and contact-impact algorithms. For more reliable simulation results, this paper then conducts study on how to accurately get material model parameters by combining the FEM method with experimental method, and develops relevant material test machine and parameter calculating software. Based on that, basic typical impact simulation and test validation study are conducted. On the basis of the above work, the paper studies the thin-shell structures'crashworthiness, which was affected by the following factors: spot-weld features, shell thickness, cross-section and pre-deformation. As to vehicle parts'crashworthiness, the paper conducts simulation study of designing energy-absorbing steering system and adaptive airbag system. A practical energy-absorbing steering wheel is designed as an example. In further depth research, the paper suggests several inverse quantificational methods for vehicle crashworthiness design based on the ideal crash characteristics. The above theories and methods are applied with good results through several practical vehicles' crashworthiness design and improvement.

文中对汽车碰撞安全性的设计理论和方法进行了归类和总结，其中包括经验法、解析法、多刚体动力学法、试验法以及有限元方法等；重点介绍了碰撞有限元法的基本理论和有关算法，涉及到有限元求解控制方程、单元离散、沙漏模态控制、时间积分、材料模型和应力修正、薄壳单元算法以及接触碰撞界面算法等，探讨了有限元计算中的材料模型参数获取技术，开发了相应的材料试验装置及材料模型参数反求软件，在此基础上进行了基本的碰撞仿真算例和试验对比研究；文中通过应用有限元方法研究了薄壁构件的碰撞吸能特性，指出了设计薄壁吸能构件时需要考虑的几个主要影响因素，即焊点、壁厚、横截面和预变形等；在关于车辆部件的碰撞安全性能设计中进行了吸能转向机构和自适应安全气囊的仿真研究，提出了吸能转向机构和自适应安全气囊的仿真研究方法；文中最后探讨了整车碰撞性能的设计与改进方法，提出了以理想碰撞特性为目标，采用分段加速度或者根据碰撞时间进行设计的反推设计法、部件吸能仿真优化设计法等量化设计方法，并通过综合应用文中所讨论的相关技术进行了整车碰撞性能的设计与改进实例研究，所选定的车型是大众化的普通轿车和碰撞安全性基础较差的微型面包车，研究结果表明，本文所提出的设计与改进方法是适用而有效的，具有重要的工程实用意义和价值。

The direction vector of benchmark in behind gasbag at the beginning position is ngr1＝nt1,the coordinate of the centre of a circle is where g is suffix, gasbag; r is suffix, the end of robot; d01 is distance of the centre of a circle between the behind gasbag benchmark section and drill mud head benchmark section.

The基准方向向量在的气囊之后 beginning位置是ngr1＝nt1，中心的座标of圈子是 where g是词尾，气囊； r是词尾，机器人的末端； d01 一个圈子的中心的is距离在后面之间的 gasbag基准部分和钻子泥朝向基准 section。

The direction vector of benchmark at the beginning position is nz1＝nt1,when the middle gasbag follows along straight line, the coordinate of the centre of a circle is where d03 is distance of the centre of a circle between the middle gasbag benchmark section and drill mud head benchmark section.

The基准方向向量首先安置 is nz1＝nt1，当中间气囊沿平直的跟随line，圈子的中心的座标是 where d03是一个圈子的中心的距离在之间的 middle气囊基准部分和钻子泥朝向 benchmark部分。

General safety gasbag from gas generator, control system and gasbag three parts.

安全气囊一般由气体发生器、控制系统和气囊三部分组成。

Pollen cones solitary or clustered, with numerous spirally arranged microsporophylls; microsporophyll with 2 microsporangia; pollen usually 2-saccate (nonsaccate in Cedrus , Larix , Pseudotsuga , and most species of Tsuga ).

雄球花单生或者丛生，有许多螺旋排列的小孢子叶；每个雄蕊有有2个花药；花粉通常有2个气囊状(无气囊，如Cedrus，Larix，Pseudotsuga 和大多数的Tsuga)。

" Balloon :a flexible, nonporous bag inflated with a gas, such as helium, that is lighter than the surrounding air, that causes the bag to rise and float in the atmosphere."

气球：一种有弹性、无孔充气后膨胀的气囊，如充入比周围空气轻的氦气后能使气囊上升并漂浮在大气中。

A flexible, nonporous bag inflated with a gas, such as helium, that is lighter than the surrounding air, that causes the bag to rise and float in the atmosphere.

气球一种有弹性、无孔充气后膨胀的气囊，如充入比周围空气轻的氦气后能使气囊上升并漂浮在大气中

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了