大气运动基本方程组
basic system of equations of atmospheric motion
the basic system of equations of atmospheric motion
basic equations set of atmospheric motion
基本动力学方程
fundamental equation s of dynamics
基本基元环境
base primitive environment
基本作图命题
basic graphing proposition
基本作业软件系统
basic operating software system
Boss
基本作战单元
basic operational unit
individual operational unit