abov 中文意思是什麼
abov
解釋
阿博夫-
A fter the system was operated, the temperature at every hoisting shaft is to abov e + 2, the hoisting shaft is antifreezed and the safety in production is ensure d
系統運行后，各提升井內溫度均達+ 2以上，防止了提升井結冰，保證了安全生產。
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