Double hysterisis, found in antiferromagnetics and antiferroelectrics , has an equal significance as the single hysteresis.双回线出现在反铁电(磁)体中及部分铁电体的临界点....
与水平安定面相连的是两个称为 “ 升降舵 ” 的可动操纵面.Attached to the stabilizers are two movable surface called " elevator ".俯仰力矩的变化由升降舵的偏转来提供.A variable pitching moment is provided by moving the elevator.飞机的升降舵可以使它升降自如.The elevator of an airc...
The Ugandan born midfielder holds a German passport, and had a previous spell with 1860 Munich.这名出生在乌干达的中场拥有德国护照, 曾在慕尼黑1860效力.The president stopped off in Poland on his way to Munich for the economic summit.总统在赴慕尼黑参加经济峰会...