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国际地球物理年已在今年7月1日开始了,它将延續到明年年底。这是全世界科学界的一个重大活动,全世界的科学家在这个活动中又一次联合起来,对整个地球作全面的調查和研究,进一步揭开地球、太陽和宇宙的奥秘。这种国际性的科学活动,在历史上會有过两次。远在一百多年以前,許多探險队先后到了两极地带,他们的目的主要是取得皮毛、油、魚等,而观测研
The International Geophysical Year has begun on July 1 this year and will last until the end of next year. This is a major event in the scientific community around the world. In this activity, scientists all over the world again unite to conduct a comprehensive investigation and study of the entire earth to further unravel the mysteries of the earth, the sun and the universe. This international scientific activity has happened twice in history. More than a hundred years ago, many expeditions went to the polar regions one after another, and their main purpose was to obtain fur, oil and fish. The Observational Research