结论参元丹对血管内皮功能具有一定的保护作用。
SYD had protection effect on the vascular endothelium function.
提出了电流注入探头的两种电路模型：集中参元电路模型和分布式传输线模型。
In this work, a lumped-parameter circuit model and transmission line model are discussed.
提出了电流注入探头的两种电路模型：集中参元电路模型和分布式传输线模型。
In this work, a lumped-parameter circuit model and transmission line model are discussed.
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