释义：1. Noun. The position of a crank when it is in line with the connecting rod and not exerting torque.
1. The Gasoline Automobile: Its Design and Construction by Peter Martin Heldt (1916)“Next the crankshaft is turned over the dead centre until the piston is again the 
独上高台望四海 手揽云月傍天飞， 落叶重重已十月 归鸟凄凄啼心扉。
简典
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独上高台望四海 手揽云月傍天飞， 落叶重重已十月 归鸟凄凄啼心扉。
