将位于多巴胺运输器基因3 '端未转译区段的40 -碱基多形性重复序列予以纯化、经聚合酶链锁反应放大。
A 40-base polymorphic repeat sequence located in the 3 '-untranslated region of the DAT gene was purified and amplified by polymerase chain reaction (PCR).
传统的物流运输量预测技术大多采用线性回归和时间序列技术。
The traditional logistics transportation amounts prediction ways mainly indicate liner regression and time sequence model.
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