英德
有道
百度
谷歌
图片
维基
百科
等臂天平
equal-arm balance
- 不等臂天平的出现，其前提条件是制造者对杠杆原理的掌握。
The essential prerequisite for using lever scale is that its maker knew the principle well. - 复梁式双盘等臂天平，采用钢带弹性作支撑，无刀口磨损现象发生。
This type of equal arm balance with double beam and pan adopts flexible steel band as support without abrasion to the edges of the knife.
 |
 |
 |
 |
 |
 |
 |
中国词汇量第二的英语词典
更多精彩，登录后发现......
