目的：寻找结构新颖的三萜皂苷类化合物。
Objective To search for triterpene glycoside with new structure.
该系列产品结构新颖，外形美观，价格合理。
Series of novel structure, beautiful appearance and reasonable price.
该传感器具有结构新颖、简单可靠、成本低等特点。
The sensor has the advantages of novel structure, simple and reliable property and low costs.
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