?可变压缩比发动机
... Variable capacity oil pump 变量油泵 Variable compression engine 可变压缩比发动机 Variable-displacement motor 变量(液压)马达 ...
可变压缩比柴油发动机
可变压缩比动力机 ; 变压缩比发动机
Its Variable Compression Engine can alter its compression ratio (the volume in a cylinder when the piston is up compared with the volume when it is down) from 14-1 to 8-1, depending on the circumstances.
ECONOMIST: Fuel economy
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