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This article uses the step-by-step Fourier method and normalized NLSE was solved, and analog input for the first-order,second-order and third-order hyperbolic secant optical pulses under the conditions of the evolution of optical pulse transmission.

本文使用了分步傅里叶方法对归一化NLSE 进行了求解，并模拟了输入为一到三阶双曲正割光脉冲条件下光脉冲传输演变情况。

In every step plastic hysteresis energy was calculated, and the result showed it increased by the step.

对各级塑性滞回能进行了计算，发现塑性滞回能随着级别的增高而增高，并对其进行了拟合。

Choice behavior demand characters were studied by in-depth survey step by step. Gradually impellent park and ride choice behavior SP questionnaire survey procedure and analysis method were put forward.

通过逐步递进的方式层层深入的解析停车换乘的选择行为需求，提出了递进式停车换乘选择行为 SP 调查流程和分析方法，研究了停车换乘选择行为特征。

Face recognition system, you need to step by step in accordance with the menu can be achieved recognition!

人脸识别系统，你需要按照菜单一步一步才能实现识别！

Step 1 - This is the most important step in my work.

步骤1 --这在我的工作中是最重要的步骤。

Go step by step into an ancient Incan civilization to find the lost city of El Dorado, a city hidden in the Amazon jungles!

去一步一步地成为一个古代印加文明，找回失去的城市埃尔多拉多，一个城市隐藏在亚马逊丛林中！

In order to overcome the statistic of step sizes in the inertial system, we have designed an inchworm system by electromagnetic clamping. A displacement speed of 30μm/s has been attained, and its step sizes is uniform.

为了克服惯性移动方式所出现的步长随机性的问题，我们又进一步研制了电磁吸引式的步进驱动系统，实际测得其移动速率约为30μm/s。

Although models get completed step by step, each has its own assumptions and limits. In managerial practice, the descriptions of the real world are inconformity.

但各种模型的发展都有其假设与限制，虽然模型发展在学理上日趋完备，但在管理实务中，对真实市场的描述不免产生不一致的现象。

And she did step a very short step closer, with her pencil poised incongruously over her pad, and repeated the formula:"...don't serve Negroes here."

她也确实迈进非常小的一步，她的铅笔怪模怪样地举在小本子上面，嘴里重复着那个公式："。。。。。。这儿不招待黑人。"

Our country has been working on the total amount controlling of NOx step by step to the agenda because the NOx concentration increasing would bring a series of city and regional environmental issues and also threat human health and environment enormously.

摘 要：氮氧化物浓度的升高，将带来一系列的城市和区域环境问题，对人体健康和生态环境构成巨大的威胁，国家已经逐步把氮氧化物的总量控制工作提上了日程。

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。