yán / jiū / rén / yuán / yòng / xiǎn / wéi / jìng / guān / chá / yàng / pǐn / zhōng / de / wēi / jīng / jié / gòu研究人员用显微镜观察样品中的微晶结构。The researchers used a microscope to observe the microcrystalline structure in the sample.