The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.
焊后热处理可以较好地改善焊接接头的韧性，但存在耗能大、工时长等问题。
The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.
焊后热处理可以较好地改善焊接接头的韧性，但存在耗能大、工时长等问题。
明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表
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