surface darkening 中文意思是什麼
surface darkening
解釋
表面變暗-
At least 60 to 70 calories per square centimeter of thermal energy are required to produce surface melting or darkening.
要使這些物質表面熔化或變黑,至少需要每平方厘米有60到70卡的熱能。 -
Various defensive strategies have been proposed, including nudging an approaching asteroid with a nuclear blast or darkening part of the object ' s surface so that the thrust produced by radiated heat changes its orbit
已經有人提出各種防範措施,包括用核彈推移接近地球的小行星,或是炸毀物體部份表面,讓輻射熱產生的推力改變它的軌道。
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