单词：nonleaded
音标：[nɒn'li:dɪd] ；
a. 无铅（如汽油等）的
s (of gasoline) not containing tetraethyl lead
【近义词】
- lead-free无铅的
单词：nonleaded 相关文章
Absurdly, he was excluded from a 1971 National Research Council panel appointed to investigate the dangers of atmospheric lead poisoning even though he was by now unquestionably the leading expert on atmospheric lead. 荒唐的是，一个美国研究委
发表于:2019-02-17 / 阅读(57) / 评论(0)
万物简史
万物简史