n.攻不破(坚固；浸透本领)
It was the enemy's boast of impregnability that caused their own defeat. 敌人自我吹嘘战无不胜,这最终导致了他们自己的失败。
The second, control of solid content of size can finely control size loading of strand, and then impregnability of strand is improved. 浸润剂固含量的控制也可以很好地控制原丝的含油率,从而改善原丝的浸透性;
Sir Alex Ferguson's side were outclassed by Barcelona in the European Cup final and the aura of impregnability dimmed further with the departure of Cristiano Ronaldo. 在欧洲杯冠军决赛，弗格森爵士的球队（曼联队）被西班牙巴萨队击溃；而且，由于C罗的出走，该队金刚罩的光环更加暗淡。
Keywords Composite RTM Permeability Impregnability; 复合材料;RTM;渗透率;浸透性;
Textile insulating cloth or tape otherwise impregn 用其他材料浸、涂的绝缘布或带
