The feasibility to simulate the initial earth stress of the large underground structure by using the algorithm of dynamic relaxation and system damping in LS-DYNA is investigated.
主要研究使用LS-DYNA的动力松弛算法和系统阻尼算法相结合来求解大型地下结构初始地应力状态的可行性。
Initial measurements were made in March, but now the binary system has moved almost directly behind the sun from our perspective on Earth, making the pair currently invisible to telescopes.
今年三月份的时候科学家们就进行了初步的测量。但是现在，以我们在地球上的视角来观察，这对双星系统已经移动到了太阳的正后方，这就导致当前无法使用望远镜来观察这对双星。
Elysium's initial plan was to run a service called Shooting Star Memorial, in which ashes are briefly sent into orbit and return to Earth as a bright streak across the atmosphere.
“极乐世界”最初的计划其实是开始一项名为“流星纪念”的服务，将骨灰运送到轨道然后划过大气层降落到地球上。
The expanding ring carries with it another great mystery, however: why wasn't this supernova seen 400 years ago when light from the initial blast should have passed the Earth?
关于这个正在膨胀的圆环，还有一个不为人知的秘密——400年前，当这颗超新星开始爆发，为什么地球上没人注意到？
The method of regression analytic and square difference is applied to computing the lost quantity of the initial subsidence of earth dam.
用回归分析方法和方差分析方法计算上坝初期沉陷漏测量。
The initial study achievements on looking for hidden uranium deposits by the earth current chemistry and thermomercury survey methods are investigated.
并就地电化法和热释汞测量法在寻找隐伏铀矿体方面的应用进行探讨。
It was discovered for the first time that a kind of rare earth salt with specific structure had good initial stability to PVC.
首次发现了特定结构的稀土盐对PV C良好的初期稳定性能。
It was discovered for the first time that a kind of rare earth salt with specific structure had good initial stability to PVC.
首次发现了特定结构的稀土盐对PV C良好的初期稳定性能。
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