armatureaxle

例句：

1. 1. The armature of the machine is made of steel.
   这台机器的机架是用钢制成的。
2. 2. The armature of the car has been replaced.
   汽车的机架已经更换了。
3. 3. The armature of the generator is vital to its operation.
   发电机的机架对其运行至关重要。