In this paper, facing the convergent problem of plastic forming using large incremental step, we deduced the iterative formula used in analysis of elastic-plastic plate forming finite element method.
此文针对塑性成形有限元分析大增量加载的收敛性困难，推导了用于板料成形弹塑性有限元分析的牛顿一致迭代公式。
Results show that this method has high accuracy even for very large time-step sizes, and possesses excellent long-time numerical calculation behavior.
文末的数值算例进一步表明，精细积分法对大的时间步长和长时间计算均有效，因此是一种很实用的方法。
The calculating step, content and method of coniform tank and circular tank with a large length-height ratio are summarized.
总结了圆锥型和长细比较大的圆柱型污水池的计算步骤、内容及方法；
A large number of levels of atomic uranium near the ionization limit have been studied using three-step resonant ionization method with three pulsed tunable dye lasers.
用三台可调谐脉冲染料激光器三步共振电离方法，测量了铀原子在电离限附近的能级。
Based on trigram models, this paper proposes a three-step method of "word-similar word-part of speech" by incorporating the similar words and solves the problem of sparse data to a large extent.
本文利用三元模型，通过引入相似词，采取“词形-相似词-词性”三步回退的策略，比较好地缓解了数据稀疏问题。
Numerical simulation shows that the time-step size can be set 100 times as large as that of the conventional FDTD method, while the C-N FDTD algorithm is still unconditionally stable.
算例也表明了当时间步长取为常规FDTD时间步长100倍时，该算法仍然是无条件稳定的。
The tunnel consists of a single tube with four lanes, and was excavated with the layer-step method, which is a new attempt in constructing the tunnel with large across span.
隧道为单洞四车道，采用分层台阶法进行开挖，在大跨度隧道施工中是一种新尝试。
The tunnel consists of a single tube with four lanes, and was excavated with the layer-step method, which is a new attempt in constructing the tunnel with large across span.
隧道为单洞四车道，采用分层台阶法进行开挖，在大跨度隧道施工中是一种新尝试。
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