By reflecting a laser beam from a specially designed hologram (shown here as the colored circle), physicists created knots of dark filaments (represented by the colored knot).
通过从来自一个特殊设计的全息图(这里用彩色圆圈来表示)的激光光束的反射，物理学家创造了(用彩色结来表示)暗丝结。
The study is for diffusely emitting, diffusely and specularly reflecting inner wall of tube and its bottom black body surface of a fictitious circle burner.
圆管壁为漫发射、漫反射镜反射混合分布，管底部为假想的圆形黑体辐射器。
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