characteristic drop in lever 特征高差
ccontra-lever type drop 悬臂式落差组织物
could likei -lever type drop 悬臂式落差结构物
Mice were trained to push levers to get either of two rewards. Press one lever, out comes a drop of sugar water.
研究人员训练老鼠去推动控制杆，推动之后能得到两种报酬中的一种——推动第一个控制杆，就会渗出一滴糖水；
A heavy forge hammer having a pivoted lever by which it is tilted up and then allowed to drop.
锻造用的重锤，通过带枢轴的杠杆将它倾斜抬起，然后落下。
Press one lever, out comes a drop of sugar water.
推动第一个控制杆，就会渗出一滴糖水。
应用推荐