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。
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。
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。
应用推荐