What if the innocent man was on a bridge over the trolley and you had to push him onto the track to stop the train?
如果一个无辜的人站在火车上的桥上，你会将他推倒在铁轨上来阻止火车么？
What if the trolley can be stopped by dropping a large weight in its path from a bridge overhead?
如果这个电车可以通过从头顶的桥上扔一个大重物来停下呢？
General bridge crane lifting trolley generally, Bridges run organization, structure and composition of metal bridge.
普通桥式起重机一般由起重小车、架桥运行机构、桥架金属结构组成。
Double-trolley bridge crane is a kind of bridge crane.
双小车桥式起重机是桥式起重机的一种。
Double-trolley bridge crane is a kind of bridge crane.
双小车桥式起重机是桥式起重机的一种。
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