Abstract: The electrical engineering and automation are reaching all walks of life to a single switch design, large space flight research, has its shadow.

摘要：电气工程及其自动化的触角伸向各行各业，小到一个开关的设计，大到宇航飞机的研究，都有它的身影。

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To birds native to the country it will seem harmful, for through their dread of its shadow they will lose their power of free flight.

对于本国的鸟，它会视之为有害，因为通过它们对它的影子的恐惧，它们会失去了自由飞行的力量。

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