tube electrometer
美
[tub ɪˌlɛkˈtrɑmɪtɚ]
英
[tju:b ɪˌlekˈtrɔmɪtə]
电子管静电计
Examples
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美[tub ɪˌlɛkˈtrɑmɪtɚ]英[tju:b ɪˌlekˈtrɔmɪtə]
电子管静电计