“concrete roof”的概念、定义、翻译、参考文献-科学参考

单词	concrete roof
释义	concrete roof 混凝土顶板
随便看	rotary oiler rotary oil pump rotary oil seal rotary oil sealed mechanical pump rotary oscillating pump rotary output rotary oven rotary packer rotary-paddle feeder rotary pair rotary pan mixer rotary parachute rotary pawl rotary pawl guide rotary pelleting machine rotary percussion drilling rotary-percussion drill jumbo rotary-percussive drill rotary phase advancer rotary phase changer rotary phase converter rotary phase modifier rotary phytotron rotary pickup rotary piercing

科学参考收录了1248194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。