名词
中文翻译：密封金属
同义词：
['sealant metal', 'sealing metal']
例句：
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1.This caulking metal is used to waterproof the joints between the wooden boards.
这种密封金属用于防水木板材之间的接缝。
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2. The engineer used a caulking metal to fill in the gaps left by the old roof.
工程师使用一种密封金属来填补旧屋顶留下的缝隙。
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3.The caulking metal was applied evenly to ensure that the joints were watertight.
将密封金属均匀涂抹，以确保接缝处防水。