“第Ⅶ主族元素”的概念、定义、翻译、参考文献-科学参考

单词	第Ⅶ主族元素
释义	第Ⅶ主族元素 Encyclopedia 理学第Ⅶ主族元素释 the group ⅦA elements第Ⅶ主族元素包括氟（F）、氯（Cl）、溴（Br）、碘（I）、砹（At）五种化学元素。简称卤素。
随便看	horizontal transit circle horizontal transit instrument horizontal vector horizontal-vertical illusion horizontal well completion horizontal well open-hole gravel pack horizontal well penetrating-layer fracturing horizontal well perforated casing completion horizontal well perforation horizontal wood drilling machine safety horizontal working areas horizontal zenith telescope horizontal zonality of vegetation in China horizon tracking Hormander Hormander operator Hormander's sum of squares hormonal contraception hormonal feedback control of the hypothalamus-adenohypophysis-target gland axis hormonal regulation of ovarian function hormonal regulation of plant senescence hormone hormone and behavior hormone and factor hormone hypersensitivity syndrome

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。