microgrammesBNC⁷⁴⁷¹⁴ 基本例句 n.微克原型microgramme的复数 But state-run China National Radio said the iodine content of edible salt in the country averages between 20-30 microgrammes per kilogramme, quoting experts saying that is too low to have any effect. 但是根据国家广播电台的报道中国食用盐中的碘含量平均只有20到30微克每公斤，据专家称含量太低根本起不到任何效果。 yeeyan