“dirty snowball model”的概念、定义、翻译、参考文献-科学参考

单词	dirty snowball model
释义	dirty snowball model [¦dǝr·dē `snō´bȯl ´mäd·ǝl] ^ASTRONOMY A model of comet structure in which the nucleus of the comet resembles a large dirty snowball.
随便看	surveillance surveillance approach surveillance radar surveillance satellite survey survey design survey foot surveying altimeter surveying sextant survey instrument survey meter surveyor's compass surveyor's cross surveyor's level surveyor's measure survey traverse survivability survivable route survival curve survival probability survival ratio survivor curve Surwell clinograph susannite suscept

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