焦屏距 的英文怎麼說
中文拼音 [jiāobǐngjù]
焦屏距
英文
focus screen distance-
I calculated and experimentally verified that such mirrors with the proper focal length require that the object be illuminated by direct sunlight to yield a visible image on the support
我計算並以實驗確定,即使有適當的焦距,這樣的鏡子需要物體直接受到陽光照射,才能在屏臺上製造看得見的影像。
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