英语词汇“primary choana”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	primary choana
释义	primary choana pri·mar·y cho·a·na , primordial choanainitial opening of the nasal pits and olfactory sac of the embryo into the rostral part of the primordial oronasal cavity, before the formation of the secondary palate.
随便看	pack horse pack-horse packhorse packhorses packhouse pack howitzer pack ice packice pack in packing packing a big gun packing a gun packing a punch packing a wallop packing away packing box packing case packing-case packing cases packing commodity regulatory organization packing, crating and handling packing, crating, and handling packing, crating, handling, & transportation packing credit in foreign currency packing densities

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primary choana