单词	milliammeter
释义	milliammeter /ˌmɪlɪˈamɪtə / noun An instrument for measuring electric current in milliamperes.As the sensitivity of such milliammeters is usually low, it is necessary first to amplify the polarographic current.... For example, the milliammeter may be calibrated to read in cubic feet per minute. X-ray machines used for diagnosis or treatment therefore need to have voltmeters and milliammeters for proper adjustment.
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