seals是什么意思

seal of证明；保证

mechanical seal[机]机械密封

oil seal油封

seal in封入

seal ring n. 印章戒指

rubber seal n. 橡胶密封圈；橡皮垫；橡胶塞；橡皮密封

shaft seal轴封，轴封装置；主轴密封

gas seal气封

seal up密封住

seal with用…密封

official seal公章；单位印章

water seal水封

packing seal密封垫，填料密封

seal face压紧面

under seal盖上公章；密封

seal oil海豹油；密封用油

pressure seal加压密封；压力封闭

seal off封闭；把…封锁起来

labyrinth seal迷宫式密封；曲径密封垫片

face seal面密封