求翻译：5、用计数笔在培养皿底面对所有的菌落逐个点数。每个数一个应听到“嘟"声才说明有效，否则应重点。此时，点到的菌落被标上颜色，显示数字自动累加，超过300时，应将检验样品稀释重作，以保证计数的准确性。是什么意思？

5, in a petri dish with the bottom face of the count pen colonies one by one all the points. Each number should hear a "beep" sound only on the effective, or should focus on. At this point, point to the colony were marked with color, showing cumulative numbers automatically, more than 300, should re

count 5, use pen in a petri dish face of all the 2,222 cfu/end points on a case-by-case basis. Each number should be heard a loud voice "Du", only effective, otherwise, they should be focused. At this point, the colony was marked with a color display, digital automatic totalizing, more than 300 samp

5th, uses the counting pen in the culture dish bottom surface to all colony one by one points.每个数一个应听到の「嘟"の声才说明有效、否则应重点。This time, the spot arrives the colony by the sign in the color, was demonstrated the digital automatic accumulation, surpasses 300 o'clock, should redo the check sample dilution,

5, with a count at the end of the dish face points one by one all of the colonies. Each one should hear the "beep" sound descriptions effectively, you should focus on. At this point, the point to the colonies are marked with a color, automatically add the displayed number, more than 300, the sample

5, with a count at the end of the dish face points one by one all of the colonies. Each one should hear the "beep" sound descriptions effectively, you should focus on. At this point, the point to the colonies are marked with a color, automatically add the displayed number, more than 300, the sample