Methods The optimal mutation breeding method was established through the screening of mutating agents and mutation conditions.

方法通过诱变剂和诱变条件的考察，确定最佳选育手段，从而筛选到效价高、 组分好的优良生产菌株。

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S. airports, the most popular new feature is a security line that lets a select few travelers whiz through the screening process with their shoes on, their laptops stowed and their dignity intact.

如今在美国的四个机场，最受人们欢迎的服务是一条容许部分旅客不用脱鞋、不用打开电脑包便能丝毫无损尊严地快速通过的安检通道。

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He says because of the complex nature of the disease, early detection through screening is the best way to prevent it.

VOA: standard.2010.06.16

The report said that audience for Phedre over its whole theatrical run was doubled through the screening of the single performance at the end of June.

BBC: Live screening 'good for theatre'

Finally, the team found 24 more people with breast cancer and 24 with colorectal cancer, and looked at their tumours for the mutant genes that had got through the screening.

ECONOMIST: Cancer genetics

Those over the age of 74 can self-refer every two years by requesting a screening kit through the Scottish Bowel Screening helpline.

BBC: Animation from The Poo Song video