In the crank and rocker mechanism, when the rocker acts as the drivinglink, there will be two dead points in one working cycle.
在曲柄摇杆机构中，当以摇杆为原动件时，工作一个循环以后，直观看出有两次死点位置出现。
2
They are driving authentication up the stack from the link to the message itself.
它们正在沿着该堆栈将身份验证从链路往上抬高到消息本身。
3
Rosemary Randall explains how psychology and emotion are key to driving the behavioural change needed to reduce our carbon footprints Link to this video.