聚合酶链式反应可使DNA自我复制，产生大量的DNA样品可供科学家进行研究。
Polymerase helps coax DNA to replicate itself, leaving researchers with large numbers of samples to work with.
没有现成的指南或过程样品、模型、形式和实例可供你复制。
There are no policy or process samples, no templates, no forms, and no examples to copy.
本文对大米、小麦粉精度标准样品的研制、复制和使用等具有参考作用。
The paper has importance of direction in preparation and repetition of standard control sample of rice and wheat flour fineness.
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