二氧化碳气体保护焊采用液态二氧化碳, 由供气系统供给, 工作压力为
A.(0.25 ~0.5 )X105帕
B.(1.0 ~1.25 )X105帕
C.(0.5 ~0.25 )X105帕
D.(1.5 ~3.5 )X105帕
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正确答案: C 答案分析:无
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A.(0.25 ~0.5 )X105帕
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D.(1.5 ~3.5 )X105帕
A.(0.25 ~0.5 )X105帕
B.(1.0 ~1.25 )X105帕
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A.(0.25 ~0.5 )X105帕
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