The normal color of the exhaust gas of the diesel will be ()
A、achromatism or thin gray
B、thin white
C、sky-blue
D、black
A、achromatism or thin gray
B、thin white
C、sky-blue
D、black
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A、the shape of an unlighted buoy B、the light color of a lighted buoy C、the color of the topmost band D、whether the number is odd or even
A、A.light characteristic B、B.color of the uppermost band C、C.shape of an unlighted buoy D、D.color of the light
A、proper break-in wear B、improper break-in wear C、relocation of the overlay flashing D、water contamination of the lube oil system
A、painted color B、light color and phase characteristic C、type of structure D、All of the above
A、have lows lower than normal and highs higher than normal B、have lows higher than normal and highs lower than normal C、are unpredictable D、occur in the spring of the year