Airport obstacle will influence the far field of Decimeter-Wave Instrument Landing System (DW-ILS) antenna.

机场障碍物的存在会对分米波仪表着陆系统天线辐射场产生一定的影响。

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But for larger areas of ischemia spiral wave formed a typical functional reentry around the obstacle.

但在大面积局部缺血时，螺旋波呈现典型的围绕障碍物旋转的功能性折返。

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Another familiar property of wave is their ability to be reflected when they meet an obstacle.

人们熟知的波的另一个性质是波在碰到障碍物时的反射能力。

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And when a wave meets an obstacle of about the same size as its wavelength, it is scattered in a process known as diffraction.

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