“四边形”概念、定义、翻译-科学时代

单词	四边形
释义	请查阅四角形--四边形
随便看	sealed bid sealed bid sealed bid auction sealed-bid auction sealed bidding sealed cabin sealed cabin sealed cadmium-nickel battery sealed combustion heating system sealed container sealed contract sealed fuel element sealed functional composite sealed glass ampoule sealed module sealed-off sealed off counter sealed plug sealed porosity sealed room elevating operation platform sealed sample sealed source sealed speaker enclosure sealed verdict sealer

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。