“heptad”的概念、定义、翻译、参考文献-科学参考

单词	heptad
释义	heptad [`hep´tad] ^{SCIENCE AND TECHNOLOGY} A group of seven.
随便看	aurora aurora australis aurora borealis aurora gating auroral auroral absorption event auroral caps auroral electrojet auroral forms auroral frequency auroral isochasm auroral line auroral oval auroral poles auroral propagation auroral region auroral storm auroral substorm auroral zone auroral zone blackout aurora polaris aurosmiridium aurothioglucose auscultation ausforging

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