名词
中文翻译：下垂焊缝
同义词：
['sagging weld', 'sagging joint', "sagging seam例句：1. The old bridge was in such a state that it needed to be repaired.（这座旧桥的状况非常糟糕，需要修复。）2. The car's engine is sagging", "and it won't start.（这辆车的引擎下垂了，无法启动。）3. The steel beam had a sagging weld", 'which made it unsafe for use.（这个钢梁有一个下垂的焊缝，不安全不能使用。）']
例句：
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1. The old bridge was in such a state that it needed to be repaired.
这座旧桥的状况非常糟糕，需要修复。
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2. The car's engine is sagging, and it won't start.
这辆车的引擎下垂了，无法启动。
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3. The steel beam had a sagging weld, which made it unsafe for use.
这个钢梁有一个下垂的焊缝，不安全不能使用。