两导两学
learning and teaching model
G-H两极管理图
G-H tow extremes ruling figure
败血症两极杆菌
Bacillus bipolaris septicus
Bacterium haemorrhagicus septicus
Bacillus septicaemiae haemorrhagicae
多样化与两极分化
diversification and polarization
肌梭两极部
muscle spindle polar region
渐近两两NQD
asymptotically NQD sequence
均数两两比较
Comparison of every two means
两极单元直线电机
Unit linear motor with two poles