isolation of strain(菌种分离)：根据生产要求和菌种特征性采用各种不同的筛选方法从众多的杂菌种分离出 Strain breeding (菌种选育)：从分离筛选获得的有价值菌种中经过人工选育出各种突变体以大幅提高了菌 ..
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'Such despair can result in a range of emotional and physical problems, including insomnia, irritability, muscle strain, headaches, social isolation and depression.
这样的绝望会导致在情感和生理问题，包括失眠，烦躁不安，肌肉疲劳，头痛，社会孤立和抑郁症的范围。
Isolation culture and PCR were performed to analyze sulfate-reducing bacteria subgroups in the sediment of Lake Aha in Guizhou Province and a purified strain identified from the sample.
采用分离培养和PCR对贵州阿哈湖沉积物中硫酸盐还原菌类群进行分析，并对分离纯化的一株硫酸盐还原菌进行鉴定。
This strain have been used as the donor for isolation of neutral protease gene.
此突变株已作为筛选中性蛋白酶基因的供体菌。
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