Because neutrinos are tiny and electrically neutral, they can travel across the universe without interference, bringing with them information about their distant astrophysical sources.
由于中微子很小,又是电中性的,它们可以在宇宙中穿行到很远的地方而不受干扰,这就为天体物理学家带来了一些来自遥远天体的信息。
There shall be no sign of damage mechanically and electrically.
无任何迹象显示机械及电气性能之损坏。
The master starting air valve can be operated both manually and electrically.
主启动气门可以手动或电动的方式启动。
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