A bronze bearing liner with a lead-tin flashing has a milky-white color over most of its surface and some areas of exposed bronze, the white coloring indicates（）<br>A:proper break-in wear<br>B:improper break-in wear<br>C:relocation of the overlay flashing<br>D:water contamination of the lube oil system

A bronze bearing liner with a lead-tin flashing has a milky-white color over most of its surface and some areas of exposed bronze, the white coloring indicates（）
A:proper break-in wear
B:improper break-in wear
C:relocation of the overlay flashing
D:water contamination of the lube oil system

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