英语：Our laboratory multi-point temperature tester has broken can not work properly. Last year, I had to send it back to factory repair twice, but manufacturers say that this instrument is no problem do not know why, there is no way in our normal. we here only that time can be measured a temperature of point instrument. First, we need to solve this problem if you are sure you want to simultaneously test the 9-point temperature and the temperature change chart.
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