“upper gunner”概念、定义、翻译-科学时代

单词	upper gunner
释义	军事词汇手册 upper gunner 机首射手
随便看	hairline hairline hair line hairline crack hairline crack hair matrix hair papilla hair pencil hairpin hair-pin curve location hair-pin curve location hairpin structure hairpin tube heat exchanger hair processing machine hair-raiser hair retardation hair shaft hair shirt hair spring hairstylist hair tail hair trigger mine hair vegetable hairy hairy

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。