| 单词 | flat-four |
| 释义 | > as lemmasflat-four flat-four adj. of a four-cylinder engine in which two cylinders are placed on each side of the crankshaft and all the cylinders are parallel to the ground. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > other types of engine > [adjective] > other specific type outdoor1874 flat-four1959 1959 ‘Motor’ Man. (ed. 36) 38 They [sc. each pair of cylinders] are at 180 degrees and the cylinders are parallel with the ground. This is known as the flat-four type. 1961 New Scientist 19 Jan. 162/2 The main features of the Ferguson ‘flat four’ design are aimed at obtaining the utmost rigidity of the crankcase. < as lemmas |
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