万一它不行怎么办？为了避免这种情况，公司通常要事先对生产过程进行分部试验。
What if it does' work? To avoid this situation, companies usually test parts of the process beforehand.
美国亚特兰大的疾病预防控制中心特殊病原体分部和安哥拉罗安达的现场试验室。
Centers for Disease Control and Prevention, Special Pathogen Branch, Atlanta, USA and field laboratory in Luanda, Angola.
美国亚特兰大的疾病预防控制中心特殊病原体分部和安哥拉罗安达的现场试验室。
Centers for Disease Control and Prevention, Special Pathogen Branch, Atlanta, USA and field laboratory in Luanda, Angola.
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