生产一级品过磷酸钙
production of first grade SSP
省一级构造单元边界
the boundary of the first-grade structure unit
瑞丽江一级水电站
Shweli(1) Hydropower Project
区域土地一级开发
Primary land development at urban region
拟一级反应速率
pseudo-first order reaction
民营一级医院
Level one privately owned hospital
莲麓一级水电站
the first order hydropower plant of Lianlu
连续一级反应
Consecutive first order reactions
consecutive first - order reaction