1)reversible level tube,可倒水准管2)reversible level,可倒水准3)reversible level,可倒小准器4)leveling with ruler upending,倒尺水准测量5)level tube,水准管6)managerial level,管理水准
用法例句
Firstly,the upgrade of feint productivity is realized through the restructuring of human resources,the upgrade of managerial level,the upgrade of technical level and other means,then the upgrade of the second phase productivity is achieved through technical and instrumental measures.
