1.The relationship of toxicity between prominent bactria of infected canals was studied in this article with animal monogerm tcst.
采用限菌性动物实验的方法,对感染根管内见菌之间在毒力学上的关系作了研究。
2.Based on the years experiences, the author summarized and provided the main criterion and technique measures for improved cytoplasmic male sterile monogerm hybrid sugarbeet of seed reproduction.