Then the derivation of local illumination source is reported, the near-field electromagnetic scattering characteristics of some electrically large structures are calculated and analyzed.

论文在推导出实现局部照射的激励源的基础上，计算并分析一些电大结构的近场局部照射下的电磁散射特性。

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This method USES at least two light sensor measurements to derive information concerning both the ambient light levels and the illumination source output level for known drive conditions.

该方法使用至少两次光传感器测量，对于已知驱动条件得出有关环境光照水平和照明源输出水平二者的信息。

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The first and second detected light levels are processed to derive a first value representing the ambient light level and a second value representing the illumination source output level.

对于第一和第二检测出的光照水平进行处理，得出表示环境光照水平的第一值和表示照明源输出水平的第二值。

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Even at the awkward angle from which we view the picture, we read it from left to right, as we do the sequence of the three paintings, but we also read from right to left, from the source of illumination above to its objects below.

WSJ: The Calling of St. Matthew | A Dramatic Enlightenment | Masterpiece by Willard Spiegelman

These explosion proof LED flashlights are ideal for operators in hazardous and non hazardous locations who need a highly reliable yet powerful and long lived source of portable illumination for activities such as utilities repairs and plant inspections.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

Admittedly, this unusual memory requires an internal light source, but the amount of illumination required is tiny and consumes less power than the logic circuits that are used to read data in and out.

ECONOMIST: Just press print