Yánjiū rényuán / zài / shíyànshì / lǐ / cèdìng / bùtóng / nóngdù / yǐsuān / duì / jīnshǔ / biǎomiàn / de / fǔshí / zuòyòng研究人员在实验室里测定不同浓度蚁酸对金属表面的腐蚀作用。Researchers measured how formic acid at different concentrations corrodes metal surfaces in the laboratory.