儿童可能无法将自己的幻想与真实世界区分开来。A child may not differentiate between his imagination and the real world.首批飞机运送的食物、儿童衣物和药品开始抵达。The first plane-loads of food, children's clothing and medical supplies began arriving.目前，14岁以下儿童不...
连杆 式 门闩系统用于控制圆拉杆或扁拉杆通过双对称,左右门均适用.Rod - Latch system to control round or flat rods . RH and LH application through double symmetry.研究了子阵约束下双对称矩阵反问题的最小二乘问题.Finally, least - squares solution for the inverse problem of bisym...