self-recording magnetic balance

例句：

1. 1. The self-recording magnetic balanceis used to measure the weight of objectsin a laboratory.
   自记式磁平衡器用于实验室测量物体的重量。
2. 2. The self-adjusting magnetic balance is designedto be easy to use and maintain.
   自调式磁平衡器设计为易于使用和维护。
3. 3. The self-calibrating magneticbalance is essential for maintaining accurate measurements inindustrial settings.
   自校准磁平衡对于工业环境中保持准确测量至关重要。