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；
For example, macaque monkeys are also highly social animals, and scientists put them in cages and taught them how to push a lever so that they could get cocaine.
比如，猕猴也是具有高度社会性的动物，科学家把他们放在笼子里并教他们学会怎样推动控制杆得到可卡因。
When rats are trained to self-administer by pushing a lever, they'll push it over and over again — even hundreds of times — to get a single dose of cocaine.
当老鼠被训练到能够通过推动操作杆来自己施用药物时，它们就会反复不断的推——甚至上百次——来获得一剂量的可卡因。
In other words, sprinters sacrifice the mechanical advantage of a long lever for the benefit of a stronger push-off.
换句话说，短跑选手牺牲了长杠杆所带来的力学优势从而获得了更为迅猛的起跑速度。
The T.25 will also have a push-button transmission instead of a gear lever, with the options of fully automatic or manual.
25还将以按钮式变速器替代摇杆式变速器，后者是全自动或手动汽车的配置。
Pull down the left and the middle lever and then push the button to get an elevator.
拉下左边和中间的杠杆，然后按下按钮，得到一个电梯。
Push operating lever for on-board computer forwards.
向前推车载电脑的操纵杆。
Place the capped cuvette in the holder and push the black lever down to lock it.
把有盖的比色皿置于比色槽中，把黑色的操作杆拉下把它锁住。
When the lever is raised to the vertical position it pushes a removable "Push Rod" down.
当手柄抬高到垂直位置，它就将可拆卸“压杆”压下。
You push the button in to engage low gear and then push the lever to release low gear and re-engage high gear.
在你按下按钮，从事齿轮，然后推低杠杆释放低速挡，并重新进行高速运转。
Just pick up a glass and et it on the machine and push it against the lever.
拿一个杯子放在那架机器上，把上面的把手往上一推就行了。
They feature a silver handle on the oven door, three black knobs for controlling cooking, and a black push-down lever for toasting.
其特征为在烤箱的门上有一个银色的把手、三个控制烹饪的黑色旋钮，以及一个黑色的供烤面包片使用的下推控制杆。
A joint lever is arranged on the joint, and can press the push rod when pulled by a guy cable to open the valve core.
接头上有接头杠杆，在拉索的拉动下能够压动顶杆，打开阀芯。
A joint lever is arranged on the joint, and can press the push rod when pulled by a guy cable to open the valve core.
接头上有接头杠杆，在拉索的拉动下能够压动顶杆，打开阀芯。
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