这种轻型手持式测试仪对在可能存在易燃气体区域内工作的人员来说是有效的可燃气体警报装置。
This lightweight hand-held instrument is an effective warning device for staff working in areas that can contain combustible gases.
这种轻型手持式测试仪对在可能存在易燃气体区域内工作的人员来说是有效的可燃气体警报装置。
This lightweight hand-held instrument is an effective warning device for staff working in areas that can contain combustible gases.
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