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彗星上有冰美国科学家发现 “坦普尔1号”的彗核表面存在冰块的证据,这是科学家首次直接证明彗星上有冰。握手交换信息日本发明一种仅通过握手就可交换信息的方法,
Ice on the Comet American scientists discovered evidence of the presence of ice on the surface of the pitted nucleus of Tempel No. 1. This is the first time scientists have directly demonstrated that there is ice on the comet. Handshaking Exchange Information Japan invented a method of exchanging information through handshaking only.