“primary seal”的概念、定义、翻译、参考文献-科学参考

单词	primary seal
释义	primary seal 初级封密主密封主座封
随便看	welted last welt (end) skiving welter welter screen welt feather bending machine welt feathering welt groove welt groover welt-grooving machine welt hammer welt holder(缝沿条机的) welting machine welt inseaming machine welt pattern welt-position welts and furrows welt-skiving machine welt-splitting machine welt staple lasting machine welt straightener welt substance welt-tempering machine welt trimming welt wetting welt wheel

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。