first selector 中文意思是什麼
first selector
解釋
第一級選擇器-
Invention of selector trunking ; first use of dial telephones in large exchange ( augusta, georgia, usa )
發明選擇器中繼。大規模交換系統中首次使用自動電話(美國的奧古斯塔州、喬治亞洲) 。 -
However, if the plane of the selector aperture is not precisely coplanar with that of the first image, then diffracted rays originating from outside the area defined by the aperture may contribute to the diffraction pattern
然而,如果選擇孔的平面與第一次成像不是正好共面,源自孔指定區域外部的衍射線可能影響衍射模型。 -
The first large buttons can be used in 16mm circular, square, mushroom - shaped, selector and the button - type switch
大型按鈕頭,可用於16mm的圓形正方形蘑菇形選擇器型和按鍵型開關
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