quadruple expansion
noun
The use of four stages of expansion in a compound steam engine, the same steam expanding successively in four cylinders; usually attributive.
Origin
Mid 19th century; earliest use found in The North American Review.
| 单词 | quadruple expansion |
| 释义 | quadruple expansionnoun The use of four stages of expansion in a compound steam engine, the same steam expanding successively in four cylinders; usually attributive. Origin |
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