The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.
焊后热处理可
较好地改善焊接接头的韧
，但存在耗能大、工
问题。
The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.
焊后热处理可较好地改善焊接接头的韧，但存在耗能大、工问题。
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