The control system is the key element of the magnetic suspending system.磁力轴承的控制系统是磁悬浮硬盘的关键.CG - D central driving suspending frame sludge radial flow sedimentation.CG-D 型中心传动悬挂式刮泥机无中心支墩,桥架静止不动,土建结构简单.Suspending bracket d...
But the general commercial satellite has the mature astronautics insurance.而一般的商业卫星则有成熟的航天保险.Beijing astronautics flight control center erupts a warm applause at once.北京航天飞行控制中心旋即爆发出一阵热烈的掌声.Should NASA be split into sepa...
I refused to wear headphones because they can perforate your eardrums.我不愿戴耳机，因为它可能会使鼓膜穿孔。to perforate something with a pin用针在某物上穿孔In advanced stages the opaque corneas may ulcerate and even perforate.在疾病后期,不透明的角膜可能产生溃疡,甚...