“maintenance and operation of program”的概念、定义、翻译、参考文献-科学参考

单词	maintenance and operation of program
释义	maintenance and operation of program 程序维护和操作
随便看	seal assembly seal bellows seal boot seal box seal by arrow-like ring seal by bimetallic O-ring with teflon seal by direct contact of conical faces seal by double conical frustum seal by double knife-edges double knife-edge seal seal by duplex conical gasket seal by elastomeric delta gasket seal by flat gasket seal by metallic delta gasket seal by metallic oval-ring seal by plug seal by precision fit seal by screwed union seal by simplex conical gasket seal by sleeve seal by special wedge-like gasket seal by stainless conical ring seal by wedge-like gasket seal by wedg-like gasket and O-ring seal by welding seal cage

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。