top-roll balance

例句：

1. 1. The engineer used a top-roll balance to ensure the stability of the machine.
   工程师使用顶部平衡确保机器的稳定性。
2. 2.The company is looking for a top-weight candidate to fill the position.
   公司正在寻找一个重量级候选人来填补这个职位。
3. 3.The top-weight of the car was measured to ensure it met safety standards.
   汽车的顶部重量被测量，以确保它符合安全标准。