名词
中文翻译：Unknown
同义词：
['test strain', 'test strain', 'test strain']
例句：
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1.The bacteria were isolated from the soil and identified as a tester strain of Escherichia coli.
这些细菌是从土壤中分离出来的，被鉴定为大肠杆菌的一个测试菌株。
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2. The research team used the tester strain to study the effects of antibiotics on bacterial growth.
研究团队使用这个测试菌株来研究抗生素对细菌生长的影响。
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3. The tester strain was used to identify the source of the contamination in the lab.
这个测试菌株被用来识别实验室污染的来源。