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来源:雅诚德英语网
Optical astronomy is most directly affected, for although interstellar gas is perfectly transparent, the dust is not.
光学天文学受到最直接的影响,因为虽然星际气体是完全透明的,但尘埃却不是。
Optical astronomy is most directly affected, for although interstellar gas is perfectly transparent, the dust is not.
光学天文学受到最直接的影响,因为虽然星际气体是完全透明的,但尘埃却不是。