弱稠集2) weak~* dense 弱*稠3) dense set 稠集4) heavy oil gathering 稠油集输 1. Energy balance analysis and energy-saving countermeasure of heavy oil gathering system; 稠油集输系统能量平衡分析及节能对策5) Q-dense set Q-稠集...
X在X**中弱*稠,于是X**含于Z. 因此,X**含于Y,故P在X**中弱*稠.