nanogram是什么意思_nanogram怎么读_音标'neinә,^ræm

nanogram是什么意思音标:英 ['neinә,^ræm]

[化] 纳克

n. one bilponth (1/1,000,000,000) gram

nanogram的用法和例句：

1.And those were very low quantities, much less than even half a nanogram total.

而且含量极低 总共少于半毫微克