“Helcionellacea”的概念、定义、翻译、参考文献-科学参考

单词	Helcionellacea
释义	Helcionellacea [¦hel·sē·ō·nǝ`las·ē·ǝ] ^PALEONTOLOGY A superfamily of extinct gastropod mollusks in the order Aspidobranchia.
随便看	reverse similar fold reverse slip fault reverse slope reverse transcript reverse transcriptase reverse transcription reverse video reverse voltage reversibility principle reversible booster reversible capacitance reversible chemical reaction reversible counter reversible electrode reversible engine reversible motor reversible path reversible-pitch propeller reversible process reversible steering gear reversible tramway reversible transducer reversible transit circle reversing current reversing dune

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