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直射光
释义
直射光
Encyclopedia
艺术学
照明光源
释
direct light
直射光
光源直接照射到物体上,使物体表面形成明显的受光面、背光面,以及鲜明锐利清晰的投影,并使被照明物体形成明显的明暗过渡层次的照明光线。又称硬光。
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nebulous envelope
nebulous object
nebulous patch
nebulous ring
NEC
necator americanus
necessary
necessary and sufficient condition
necessary and sufficient statistic
necessary and sufficient σ-field
necessary condition
necessary condition for optimality
necessary heirship
necessary labor under the socialist system
necessary labour and surplus labour
necessary nutrients
necessary observation
necessary product and surplus product
necessary statistic
necessary topology
necessity
necessity and freedom in history
nechanical dust collector
Necitumumab
Neck
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