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引用第41樓sun569于2008-04-28 14:34發(fā)表的 : y_A7CG"^ 軟件模擬能達(dá)到這個效果,實物能嗎?是怎么設(shè)計燈具才讓光斑形成的這樣的矩形呢?目前LED的光效不如鈉燈,它的生存優(yōu)勢在哪里呢?請教請教!謝謝高手們
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