但是现在，一个好的摄像机可以放在你的口袋里，而且，美国康奈尔大学的研究人员发明了一种只有仅有半毫米见方、百分之一毫米厚度的摄像机。
Today, really good cameras fit in your pocket. And now, researchers at Cornell have developed a camera that’s just a half-millimeter on each side and a hundredth of a millimeter thick.
一般来说，木材气化炉工作木块和木屑的80x40x40毫米至10x5x5毫米不等的好。
In general, wood gasifier work well on wood blocks and wood chips ranging from 80x40x40 mm to 10x5x5 mm.
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