No difference recognized between the engine MAP reading and the barometric (atmospheric) pressure reading at start-up.

启动时发动机MAP读数与大气压读数无差异。

youdao

When I started daily tracking in Iowa immediately after January 1, 2004, Dean was still leading, but the other barometric reading had flipped: Iowa Democrats were now saying by two-to-one they wanted someone who could defeat Bush.

FORBES: The Howard Dean Analogy For Today's Republicans