Nitrogen forms about 78% of the earth's atmosphere. 氮約占地球大氣的百分之七十八。
Like Keck, the GCT uses adaptive optics to correct for the distortion caused when light passes through Earth's atmosphere. 和凱克類(lèi)似,大加納利望遠鏡也采用一些光學(xué)補償方法抵消地球大氣對到達地球的宇宙射線(xiàn)的影響。