apparent solar day [天] 真太阳日 ; 被称为表观太阳日
apparent solar time [天] 真太阳时 ; [天] 视太阳时 ; 视时 ; 太阳时间
apparent solar year 视太阳年
local apparent solar time 地方视太阳时
solar annual apparent motion 太阳周年视运动
solar apparent diameter 太阳视直径
solar apparent coordinate 太阳视坐标
solar apparent zenith distance 太阳视天顶距
apparent solar
明显的太阳能
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The idea of using a magnetic field as a solar sail was first suggested a few years ago, but it soon became apparent that creating a field strong enough to be useful would require exotic superconducting materials that, unfortunately, do not exist.
ECONOMIST: Rockets are not the only way to travel through outer space
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