單項選擇題

The figure that the volume of air at BDC is divided by the volume of air at TDC is termed as（）.

A.ignition ratio
B.power ratio
C.compression ratio
D.injection ratio

你可能感興趣的試題

單項選擇題

The external circumference of a pair of main bearing shells is slightly larger than that of the bore of the housing which receives themThe difference is termed （）.

A.nip
B.nap
C.gap
D.lip

單項選擇題

The external circumference of a pair of main bearing shells is slightly （） that of the bore of the housing which receives themWhat’s the meaning of “that” in the sentence above?

A.less than
B.lighter than
C.larger than
D.smaller than