“training aid”的概念、定义、翻译、参考文献-科学参考

单词	training aid
释义	training aid [`trān·iŋ ´ād] ^ENGINEERING Any item which is developed or procured primarily to assist in training and the process of learning.
随便看	surface sizing surface soil surface state surface storage surface temperature surface tension surface tension number surface tensity surface thermometer surface-to-air missile surface-to-surface missile surface treating surface vibrator surface visibility surface wash surface water surface waterproofing surface wave surface-wave transmission line surface weather observation surface wind surface zero surfacing surfacing mat surfactant

科学参考收录了103327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。