等臂天平
- n.equal-arm balance
- 网络balance of differing in arms
等臂天平等臂天平
equal-arm balance
百度词典搜索_等 ... 等比级数[ geometric series] 等臂天平[ equal-arm balance] 等边三角形[ equilateral triangle] ...
balance of differing in arms
不等臂天平(balance of differing in arms) 是砝码质量与待测物不相同,而横臂可以改变的一种天平.其总效应是力矩不变的原理使 …