The key problems of finite element modeling and analysis of nonlinear structural dynamics for the whole firing course of towed howitzer are investigated.
研究牵引火炮全发射过程非线性结构动力学有限元建模和分析中的关键问题。
By firing a laser at a piece of junk for a few hours it should be possible to alter it's course by 650ft per day.
每日超同一块太空垃圾发射数小时的激光，这有可能使其发生650英尺的位移。
He was, of course, referring to the Large Hadron Collider that just conducted its first successful test, firing a stream of particles under the Alps.
他指的当然是LHC(大型强子对撞机)。在阿尔卑斯山脚下，LHC成功发射粒子束，进行了第一次试验。
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