ES51918 is an integrated analog-to-digitalconverter (ADC) with 11,000 counts LCDdisplay, automatic range selection, and 3V DCpower supply. Automatic range selection isprovided for voltage (AC/DC) measurement,resistance measurement, current measurement,capacitance measurement, and frequencycounter. Expensive and bulky mechanicalrange switches are not required. Other featuresinclude peak detection with calibration mode,relative value display, zero-offset removingfeature in manual DCA mode for clampmeter,data holding, maximum and minimum holding,diode measurement, temperature measurement,continuity checking, low battery detection,auto power off, re-power on, and RS232 dataoutput.
中国研究生教育评价报告的产生自对全国 31 个省、市、自治区、56 个研究生院、478 所高校、11 个学科门类、81 个一级学科和 373 个专业对培养单位的研究生教育竞争力进行了全面、系统和深入的评价,共获得了 469 个排行榜。这是目前国内外最全面、最系统的研究生教育评价,特别是对国务院学位办设置的 373 个专业(不含一级学科学位授权点下各单位自设的专业)的评价。
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