Pre jumping: Prejumping the face of the mogul pumping with heavy contact on the backside. This is a technique to gain speed in the moguls.
提前跳：提前从包脸跳起后重重的落到包背上。这是一种滑猫跳时取得速度的技术。
A newly developed BBH pre - vacuum - pumping carburizing furnace has been introduced in this paper.
介绍了新研制的预抽真空式可控气氛气体渗碳炉。
A newly developed BBH pre - vacuum - pumping carburizing furnace has been introduced in this paper.
介绍了新研制的预抽真空式可控气氛气体渗碳炉。
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