“保护管”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	保护管
释义	矿业工程技术词汇手册保护管 protection tube
随便看	supervisor supervisor supervisor appraisal supervisor appraisal supervisor call instruction supervisor call interrupt supervisor control supervisor for candidates for master's degree supervisor for candidates of doctorate supervisor-general of State Education Commission supervisor process supervisory authority supervisory authority supervisory computer control system supervisory computer control system (SCCS) supervisory computer control system（SCCS） supervisory control supervisory control supervisory control supervisory control signal supervisory development supervisory frame supervisory jurisdiction supervisory level supervisory level