zài / xiǎn / wēi / jìng / xià / kě / yǐ / guān / chá / dào / wēi / sī / xuè / guǎn / de / xì / wēi / jié / gòu在显微镜下,可以观察到微丝血管的细微结构。Under a microscope, the fine structure of capillary blood vessels can be observed.