In gases, the particles are far apart, with empty space between.
气体分子之间的间距大，彼此间有空隙。
"Beth and I have been like two bookends, with almost 70 years of empty space between us," Mr. Fellows said.
费罗说：“我和贝丝就像两个书夹，中间空白了整整70年。”
This way, the empty space between the radiator coolant surface and the radiator lid becomes filled with the air.
这种方式，空的空间之间的冷却表面和散热器散热器盖成充满了空气。
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