shadow region

基本解釋

The diffraction effect is the phenomenon of wave propagation into shadow region.
衍射則是電波繞射傳播到遮蔽區(qū)的現(xiàn)象。
The recognition results show that 40 features are effective on the target region and is not useful on the shadow region.
最終識別結(jié)果是：圖像中目標(biāo)區(qū)域的40個特征組合可以達(dá)到較高的識別概率，而陰影區(qū)域的40個特征組合的識別概率比較低。
Wave optics, however, tells us that no sharp shadows can exist , since some of the light does reach into the geometrical shadow region.
而波動光學(xué)卻告訴我們，清晰的陰影絕不會存在，因?yàn)橛幸恍┕鈺M(jìn)入幾何陰影區(qū)域之內(nèi)。

For decades, the conflict between Israelis and Arabs has cast a shadow over the region.
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But BP's disastrous oil spill in the Gulf of Mexico has cast another dark shadow over the region.
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