对于符合双重绝缘安全标准的工具，必须在其外壳上标注“双重绝缘”字样。
For the tool to meet double insulation safety standards it must be marked on the case 'double Insulated.
差动测量探测器具有布置在外壳内的弹簧加载的、双重缓冲的探测组件和压力传感器。
A differential measurement probe has spring loaded, double cushioned probe assemblies and a pressure sensors disposed in a housing.
差动测量探测器具有布置在外壳内的弹簧加载的、双重缓冲的探测组件和压力传感器。
A differential measurement probe has spring loaded, double cushioned probe assemblies and a pressure sensors disposed in a housing.
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