When post weld heat treatment is required, the PWHT may be performed by using an approved subcontractor.

如果需要进行后焊热处理，则应由经核准的分包商实施。

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The research result indicates that, when bimetal material is certain, the size of heat treatment mandrill and the temperature of re-crystallized anneal would decide the end size of bimetals wreaths.

研究结果表明，双金属材料确定后，热处理芯轴尺寸和再结晶退火温度决定双金属环的最终尺寸。

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The analysis of variance shows a significant effect on the interaction of heat stress and growing media on leaf water potential when the treatment is applied only at midday.

分析表明中午期间热应激和栽培基质的相互作用对叶面水势有显著影响。

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