The density of white shingles is greatest towards the top of the climbing tower, suggestive of snow, while grey and brown shingles surround the base.
白色瓦片的密度在攀岩塔的顶部是最大的，象征着雪，而灰色和棕色的瓦片环绕在底部。
The density of holes in the base is less than the density of free electrons in the emitter and collector .
基极中空穴的密度小于发射极和集电极中自由电子的密度。
Its output, quality and growth are affected by base manure, density, temperature, light and moisture.
荞麦菜的产量、品质及生长受栽培基质、密度、温度、光照和水分等因素的影响。
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