名词短语
中文翻译：Unknown
同义词：
['gas welding', 'gas welding process', 'gas welding technology']
例句：
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1.The gas welding work is critical for the construction of bridges and tunnels.
气体焊接工作对于桥梁和隧道的建设至关重要。
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2. Gas welding work requires special training to ensure safety.
气体焊接工作需要特殊的培训以确保安全。
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3. The gas welding work is done by skilled welders who have years of experience.
这项气体焊接工作由经验丰富的焊工完成。