“Pygasteroida”的概念、定义、翻译、参考文献-科学参考

单词	Pygasteroida
释义	Pygasteroida [´pī·gǝ·stǝ`rȯid·ǝ] ^PALEONTOLOGY An order of extinct echinoderms in the superorder Diadematacea having four genital pores, noncrenulate tubercles, and simple ambulacral plates.
随便看	tonic postural epilepsy tonic spasm ton-kilometer ton-mile tonnage tonnage deck tonne tonneau tonofibril tonometer tonoplast tonsil tonsillectomy tonsillitis tonstein tonus tool tool bit toolbox tool-center point tool-check system tool design tool-dresser tool extractor tool-function controller

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