liquid penetrants testing
... 升(容积单位)：litre(l) 渗液检验：liquid penetrants testing 渗锡溶接配件;毛细接合配件;"走锡配件"：capillary fittings ...
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短语
液体渗透检验
Liquid penetrant examination
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liquid penetrant test
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PT
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[机]
liquid penetration test
液体渗透性检验
Liquid penetrant inspection