Entire annealing, spot annealing and high frequency annealing and other measures were adopted afterwards, but had no positive effect.
以后，虽采取了整体退火、局部退火和高频退火等措施，但效果不佳。
Entire annealing, spot annealing and high frequency annealing and other measures were adopted afterwards, but had no positive effect.
以后，虽采取了整体退火、局部退火和高频退火等措施，但效果不佳。
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