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But, in the natural and artificial signal, a lot of signal phases don\'tvary linearly with time, for example, we usually use chirp signal in the radar technology,frequency step signal, linear modulation component of the ground echo in the SARtechnology, linear modulation component of the moving target echo, linear modulationcomponent while the airborn radar detecting the moving target, etc.

在自然界和人工信号中，许多信号的相位变化并不是随时间一次方变化，如雷达技术中常用的线性调频信号，频率步进信号，另外，SAR 技术中，地面回波所含有的线性调频分量，ISAR技术中，运动目标的回波所含有的线性调频分量，机载雷达探测运动目标时的线性调频分量，等等；傅里叶变换对此类信号分析所得的结果是信号在不同频率点上的能量分布，即信号在基函数上的投影。

Anyway, at some point while reworking the image with the airbrush and smudge tool I reached the following stage.

不管怎么说，在某些步骤，当我正在重新用喷枪和手指工具画画的时候，我也得到了接下来的这个结果。

While at sea, the most weapons of mass destruction is "aircraft carrier."

而在海上，大规模杀伤性武器最多的是"航空母舰"。

Go it while you aire young.

趁你还年轻就努力干吧。

His favourite song is Vivir Sin Aire by Manà, while his favourite singers are Juanes and Joss Stone.

他最喜欢的歌曲是 Manà的 Vivir Sin Aire ，然而他最喜欢的歌手是 Juanes 和 Joss Stone 。

This facility appears that it could actually test the engine while it's in the airframe.

他说：这个设施似乎可以测试装在导弹上的引擎。

Be it guests at your house or while visiting someone or from the airhostess in the flight.

无论是嘉宾在你的房子，或者拜访某人或从airhostess在飞行。

The roof line, particularly large windows and tapering chrome-plated door handles underline the flowing lines of the body, while the high waistline, clearly marked wheel arches and 19-inch wheels clearly identify C5 Airscape as a vehicle of status.

屋顶线，特别是大的窗户，逐渐变细镀铬门把手强调身体的线条流畅，而高车身，明显标志的轮拱和19英寸的车轮明确说明，作为车辆身份碳五鸟瞰图。

In the helicopters half-practicality simulation laboratory, load simulator is an important equipment to simulate the aerodynamic load acting on the airscrew while flying.

直升机的半实物仿真试验室中模拟旋翼在飞行中所受空气动力载荷的重要设备是负载模拟器。

Last year, MSNBC devoted 28% of its airtime to election coverage, while Fox News devoted 15% and CNN 12%.

去年，MSNBC 花了28%的节目时段在报导选举相关的新闻，Fox News 则是15%，CNN是12%。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"