前处理模块：实现样品提取、浓缩、净化一体化，每次可处理六个样品。
In the pre-processing module: realization of sample extraction, concentration, purification integration, each can process six samples.
前处理模块：实现样品提取、浓缩、净化一体化，每次可处理六个样品。
In the pre-processing module: realization of sample extraction, concentration, purification integration, each can process six samples.
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