complex biological system
efficiency of biological system
function in biological system
living biological system
System biological engineering
phycosphere biological system
aerated static bin composting system
analog computing system
analogdigital computing system
analog-digital computing system
analogdigital computing system
模拟数字计算系统
危急遮断控制系统
危急保安系统
紧急跳闸系统
auto compensating system
Automatic compensating system
autonomic computing system
auxiliary computing system
Boeing airplane company algebraic interpretive computing system