【 在 adu (阿杜) 的大作中提到: 】 : 人家网站上写的清清楚楚，大家都不看的吗？ : : Webb's large sunshield will protect it from both Sunlight and Earthlight, allowing it to cool to 225 degrees below zero Celsius (minus 370 Fahrenheit)." For the sunshield to be effective, Webb will need to be an orbit where the sun and Earth are in about the same direction. : -- FROM 123.123.45.*