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There are new possibilities on the economic front, but there are also areas that can lead you astray.

在经济方面有新的可能，但也有让你误入歧途的可能。

In particular the application of general relativity to study astrophysics and cosmology, physics has become a popular front.

特别是应用广义相对论来研究天体物理和宇宙学，已成为物理学中的一个热门前沿。

But no matter we are what kind, the life reality suspends, in our each has, to have a face, astutely, the wisdom person's front, the life is not easy, attentive passed half a lifetime with hardship, tonight heavy walks into the wind and rain.

但不论我们怎样，生活的现实摆在我们每一个有头、有脸、精明、智慧的人的面前，人生不易，勤勤苦苦已度过半生，今夜重又走入风雨。

However, there is no asymmetrical chain pull upon the front wheel.

然而，没有不对称链拉的前轮。

This paper analyzes the application of MC-CDMA in a multiple antennas environment and derives an equation for the closed-form asymptotic spectral efficiency of the system with matched filter and linear minimum mean square error front-ends.

该文从信息论的角度分析了MC-CDMA在多天线通信系统中的应用，得到了当采用匹配滤波器检测子和线性最小均方误差检测子的渐进频谱效率的闭式表达，研究了可用于指导系统设计的频谱效率与发送天线数和接收天线数的关系。

The user sitting in front of his own screen checks his asynchronous transmission by looking at the screen and re-typing his mistakes.

坐在电脑前的用户通过观察屏幕和重新键入错误来检查异步传输。

Of course, all this comes at a cost, both up front and ongoing.

当然，所有这一切是有代价的，都在前面和持续的。

Using high-speed ADC front-end to cover a given monitor bandwidth, carrier frequency at a rough estimate and considering some of the protection zone, use less uniform bandpass sampling theorem interpolation line drawn in order to get the signal after subsampling.

详细说明：利用前端高速ADC来覆盖给定的监视带宽，在粗略估计载频并考虑一定的保护带，利用带通信号的均匀欠采样定理行内插抽取，以获得欠采样后的信号。

But is called you the woman not to have to speak at a venture, I have not said any in front of her.

但是，叫你的女人没有发言的有风险，我并没有说任何在她面前。

I want to sit at the front of the bus.

我想坐在汽车的前面。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。