... insulating strength绝缘强度 indicated electrode指示电极 handy digital tachometer手持式数码转速表 ...
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active metal indicated electrode 活性金属指示电极
metal base indicated electrode 金属基指示电极
inert metal indicated electrode 惰性金属指示电极
metal-insoluble salt indicated electrode 难溶盐指示电极
insoluble salt indicated electrode 金属难溶盐指示电极
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