“policeman's helmet”概念、定义、翻译-科学时代

单词	policeman's helmet
释义	园艺学词汇手册 policeman's helmet 喜马凤仙花
随便看	dental impression material dental insurance dentalization dental material dental model material dental officer dental pad dental plaque dental preferred provider organization dental preferred provider organization (DPPO) dental prevention and health-care material dental pulp dental root dental solder alloy dental technician dental treatment dental wrought alloy dentary dentation dent corn dent corn dent corn dented stilling basin dentella dentelle au fuseau

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。

policeman's helmet