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By using the numerical calculation results of the density matrix equations of motion of a closed Λ-type inversionless lasing system, the effects of the propagation of light fields on the gain of lasing without inversion, Rabi frequencies of the probe and driving fields, and the modulation role of spontaneously generated coherence on the effects were investigated when the Doppler broadening presents.

利用封闭Λ型三能级无粒子数反转激光系统密度矩阵运动方程的数值解，研究了存在Doppler展宽的情况下光场的传播对LWI增益、探测场和驱动场Rabi频率产生的影响以及有自发辐射诱导相干对这个影响的调制作用。

Any mass grave is a relatively rare find, but to find one on this scale, from this period of history, is extremely unusual and presents an incredible opportunity to learn more about what is happening in Dorset at this time.

" "任何万人坑是比较罕见的发现，但发现如此规模的一个，从这段历史，是极为罕见，并提供了一个千载难逢的好机会，了解什么是发生在多塞特在这个时间。

To realize temperature real-time control in microwave heat treatment, this paper presents a new type of thermal dosimeter on hyperthermia.

为实现肿瘤微波热疗过程中温度数据的实时监控以及测温曲线的显示，研制了肿瘤热疗热剂量仪，可在强电磁场中配合各种频段的微波热疗治癌机使用。

At first, This papers presents DoSs definition, classification, history and developing trend, and emphasizes on the analysis of typical attack approaches.

本文首先介绍了DoS的定义、思想、分类、历史及发展趋势，重点对典型的攻击方法进行了分析。

This paper presents the concepts of double limit, repeated limit , directional limit and weak double limit of binary function, and discusses the relationships among them.

给出了二元函数的二重极限、累次极限、方向极限、弱二重极限的概念，讨论了这几种极限之间的关系。

This paper presents a double loop controller for VVVF.

介绍一种双闭环控制变频调速系统。

In this paper, it presents double loop controller with current feed-forward based on Buck DC-AC inverters.

针对Buck DC-AC逆变器，提出一种带电流前馈的双环控制器。

In this paper, it presents a new downlink synchronization program and gives theoretical analysis and simulation verification.

针对本系统提出了一种新的下行链路同步捕获方案，并给出理论推导和仿真论证。

The modern famous writer Margaret Drabble's novel The Millstone presents to us her exquisite answer to this question.

德拉布尔在她的小说《磨砺》中以艺术的方式对这一关系作了一个巧妙的回答。

After discussing some key issues of draping technology, this paper presents three enlightments for 3D Garment CAD.

文章在对立体裁剪进行剖析的基础上，对三维服装CAD研究给出了三点启示。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。