“spiral lead-in and spiral throw-out”的概念、定义、翻译、参考文献-科学参考

单词	spiral lead-in and spiral throw-out
释义	spiral lead-in and spiral throw-out 盘首纹和盘尾纹
随便看	rotary muller rotary multivane compressor rotary nut rotary off-normal contact rotary off-normal spring rotary oil burner rotary oil burners 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

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。