flat - (of engine) having horizontally opposed cylinders; flat twin or four or six or eight engine = engine with two or four or six or eight horizontally opposed cylinders
The engines tested shall include leak-proof engines other than those so designed that even a slight leakage may cause unacceptable operating faults (such as flat-twin engines).
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.
