“Great Wall”的概念、定义、翻译、参考文献-科学参考

单词	Great Wall
释义	Great Wall [¦grāt `wȯl] ^ASTRONOMY A layer of several thousand galaxies, estimated to extend for about 500 × 10⁶ by 200 × 10⁶ light-years but to be less than 15 × 10⁶ light-years thick, constituting the largest known structure in the universe.
随便看	deflection board deflection change deflection circuit deflection coil deflection correction deflection curve deflection defocusing deflection difference deflection electrode deflection error deflection factor deflection magnetometer deflection meter deflection-modulated indicator deflection of the vertical deflection plate deflection polarity deflection probable error deflection scale deflection sensitivity deflection ultrasonic flowmeter deflection voltage deflection wedge deflection yoke deflectometer

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