英语词汇ostracoderm怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ostracoderm
释义	ostracoderm 英/ ??str?k???d??m / 简明释义 [古生] 甲胄鱼类网络释义 1 ?甲胄鱼但是在奥陶纪、志留纪与泥盆纪地层中，却找到了与圆口类近似的化石种类，称之为甲胄鱼（Ostracoderms），在分类上另立为一纲，即甲胄鱼纲（Ostracodermi）。这类动物都没有上下颌，因此可以总称之为化石无颌类。双语例句 1 Hill walkers find dinosaur bones sticking out of hillsides: schoolchildren pick up ostracoderm skeletons on the beach. 登山者们会发现山坡上露出的恐龙骨骼，小学生们会在海滩上捡到甲胄鱼(ostracoderm)的骨骼。
随便看	selective dissection selective dissemination selective dissemination of information selective dissemination of information (sdi) selective dissemination of microfiche selective dissemination on microfiche selective dissemination system selective distal splenorenal shunt selective distortion selective distribution selective diversity combining selective doping selective drainage method selective dump selective earth leakage protection selective effect selective electrode selective elimination selective elution selective emission selective employment tax selective endoscopic therapy selective enlargement selective enrichment selective enrichment medium

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