“navigation aid”概念、定义、翻译-科学时代

单词	navigation aid
释义	海洋与水文词汇手册 navigation aid 航标
随便看	transistor-resistor-transistor logic transistor self-balancing instrument transistor servo preamplifier transistor switch transistor torque meter transistor-transistor logic transistor-transistor logic--transistor-transistor logic (TTL) transistor-transistor logic (TTL) transistor-transistor logic（TTL） transistor trigger transistor voltage stabilizer transistor voltmeter transit transit transit transit transit transit account transit advertising transit and stadia survey transit area transit camp transit card transit cargo transit cargo

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。