1) pre-treatment of normalization
预先正火
1.
In order to improve the strength and toughness, the pre-treatment of normalization before intermediate frequency induction quenching of the cutting edge was carried out.
为进一步提高刮刀刃部的强韧性,采用在刃部中频感应加热淬火之前增加一道预先正火处理;为了防止刮刀刀尖在中频感应加热淬火时过热,出现崩刃现象,设计了一种特殊形状的感应器,适当降低刮刀刃部硬度要求。
2) preanntaling
预先退火
3) prefiring
预先点火
4) precorrection
['pri:kə'rekʃən]
预校正，预先校正
5) pre-annealing temperature
预先退火温度
1.
The effect of chemical composition and pre-annealing temperature on the structure and property of 3102 H26 fin stock was studied.
研究了化学成分、预先退火温度对铸轧3102H26空调箔组织与性能的影响。
6) preliminary fire refining
预先火法精炼<冶>
补充资料：预先
1.在事情发生或进行之前。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条