boron

['bɔːrɒn]
['borɑn]
TOEFL

基本解释

n,[化学]硼,同近

用法

He said there should be an element under boron..他认为在,硼的下面也有个元素。

英英

[化]硼英释中释na very hard almost colourless crystalline metalloid element that in impure form exists as a brown amorphous powder. It occurs principally in borax and is used in hardening steel. The naturally occurring isotope boron-10 is used in nuclear control rods and neutron detection instruments. Symbol: B; atomic no: 5; atomic wt: 10.81; valency: 3; relative density: 2.34 (crystalline), 2.37 (amorphous); melting pt: 2092°C; boiling pt: 4002°C

短语

1 boron nitride,氮化硼;一氮化硼

2 boron carbide,[化]碳化硼

3 cubic boron nitride,[材料学]立方氮化硼

4 boron trifluoride,三氟化硼

5 boron steel,硼钢

6 boron oxide,氧化硼;二氧化硼

单词大全

关于英语单词大全

英语单词大全工具支持英语单词的解释,同义词,相关例句,近义词等在线查询,帮助您了解和熟悉该单词,目前共收录小学英语单词,初中英语单词,高中英语单词,大学英语四级单词词汇,大学英语六级单词词汇,考研单词,专业八级以及托福雅思GMAT,GRE词汇等,截至目前已更新收录6万条单词,每天都会更新。