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| echinoderms (Echinodermata) | |||
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| echinoderm Marine coelomate animals distinguished from all others by an internal skeleton composed of calcite plates, and a water-vascular system to serve the needs of locomotion, respiration, nutrition or perception | |||
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adatadaini : 1 短语, 1 学科 |
| 食品工业 | 1 |