trispast
/trahy-spast/US // ˈtraɪ spæst //
三重过去
Definitions
n.名词 noun
- 1
- : an ancient hoist or hauling device having three blocks.
Examples
This kind of machinery, revolving with three sheaves, is called a trispast.
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三重过去
This kind of machinery, revolving with three sheaves, is called a trispast.