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We take sech form ansatz and solve the CNLS equations through variational approach. We obtain the analytical expression of nonlinear coupling term, which is in the lagrangian of CNLS. We apply a potential well model to analyze the interaction properties of self-trapping beams in detail, the results show that the interaction do not change the profile of the beams, two beams keep oscillating around their collective center periodically. The amplitude and period of this oscillation are both determined by initial separation of two beams.

我们采用Sech函数为试探函数，用变分法求解CNLS方程，（1）给出了CNLS方程所对应的拉格朗日中的非线性耦合项的解析表达，（2）利用势阱模型详细分析两自陷光束之间相互作用的特性，结果表明，相互作用没有改变孤子的形态，它们分别在与传播方向垂直的方向上绕它们的公共中心做往复振动，振动幅度及周期都取决于两光束的初始分隔。

General conferences are held semiannually in Salt Lake City and regional conferences periodically in other areas.

大会举行半，在盐湖城和区域会议定期在其他领域。

The virus carrying rate of rats was periodically monitored by sequential sampling method.

因此，根据该法判定：有95%把握认为该地区的鼠类携带HV水平达到或超过30%。

Due to surface abrasion and Sideswipe can affect the image quality of output, users need to periodically change the photoptic.

由于表面磨损和擦痕会影响图像的输出质量，用户需要定期跟换感光器。

If you use dry cleaners 4 after a period of time, the dry cleaners pipe must be a lot of dust and dirt siltation shall periodically pipes so clean.

干洗机如果使用了一段时间后，干洗机的管道里肯定会淤积了不少灰尘污垢，所以应定期将管道清理干净。

We proposed, therefore, using adequate numbers of spawner obtai ned from various localities in artificial propagation and inoculating genetic ma terials from natural populations periodically are probably an effective measure to maintain or to increase the genetic variability in an artificially propagated fish stock.

我们认为生产上采用数量大、来源广的亲鱼进行人工繁殖，并定期用天然种群更换或补充繁殖用亲鱼很可能是保持或增加鱼类人工繁殖种群遗传变异性的一种有一效手段。关键词同工酶座位，电泳，遗传变异性，天然种群，草鱼

It means to recognize periodicity by analyzing the spectral density of periodically variable sequence, then to judge the measured period true or false through the statistical examination of Fisher's Kappa and Bartlett's Kolmogorovsmirnov.

第三节"波动周期的模型测定法"以"收入—支出"结构和"需求导向"为基本构架，通过建立中国宏观经济波动模型来测定宏观经济内生变量波动的周期长度，这种通过解析思路测定经济变量波动周期的方法，具有理论支撑，其科学性、可信性是显而易见的。

The results of the studies indicate that the fluctuations of two quadrature components of light can be squeezed periodically, and this squeezability is related to the initial state of the system.

数值计算结果表明，光场的两个正交分量的均方涨落均呈现周期性的压缩，其压缩程度与系统的初始状态有关；光场光子的统计性质也依赖于系统的初始状态，光场两模之间的相关是一种非经典相关。

This paper deals with analysis procedures of periodically locally stationary random process which is a specific class of locally stationary process.

本文讨论一类特殊的局部平稳随机过程——周期性局部平稳随机过程的分析方法。

Arrange the stocktaking periodically according to company policy, tracking all the difference occurred and solution.

根据公司要求定期安排库存盘点，追踪所出现的差异问题及解决方案。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。