然后，电缆接线头用穿过套管中心管的牵引绳小ln地拽出。
Then, cable lugs used through the traction rope sleeve center small LN tube pulled out.
通过实验，摸索出测定总大肠菌群的一种五管发酵法。
A method is found out to determine the total coli-group by the five fermentation tubes.
为了培养出一位合格的管理人员，管培生培训期从半年到五年不等。
To qualify a candidate's training period may range from six months to five years.
为了培养出一位合格的管理人员，管培生培训期从半年到五年不等。
To qualify a candidate's training period may range from six months to five years.
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