心脏是人体循环系统的核心，心脏的活动是由生物电信号引发的机械收缩。
Heart is the core of the cyclical system of human body. The activity of the heart is the mechanical contraction caused by the biological electrocardiac signal.
这名英国人有支机械手臂，他通过收缩肩膀的肌肉来控制这支手臂。
The British man has a robotic arm, which he controls by flexing muscles in his shoulders.
这一方面是为了减小管线的阻力损失，另一方面是为了避免通径收缩后给机械清扫管线造成障碍。
This aspect is to reduce the pipeline pressure loss, the other is to avoid the path contraction obstacle to the mechanical cleaning pipelines.
应用推荐