大小胜过数量，在德克萨斯州的私人牧场里，一只美洲鹤使一群黑腹树鸭分散开来，权且作为一个勇敢的饲养员。
Size trumps numbers as a crane scatters black-bellied whistling-ducks near a game feeder on a private Texas ranch.
这是因为乙炔黑的粒度比石墨小，比表面积相对更大，能很好地分散在活性物质之间。
It is because that the particle size of acetylene black is smaller than that of graphite, it is easy to disperse well among active material.
雪鸮是一种大型白色鸱鸮，体上有分散的斑点，黑喙，黄色眼睛。
A large white owl with some scattered spots, black bill and yellow eyes.
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