| 释义 |
cop·per·as 英ˈkɒpərəs美ˈkɑpərəsAHDkŏpʹər-əs COCA¹⁹⁷⁵³²BNC¹⁷³⁹⁹⁵⁺²
基本例句
n.绿矾¹⁰⁰
Copperas prepared by a reduction method of mechanically activated pyrite from pyrite cinder is featured by low cost, fast reaction speed and high quality.
以硫铁矿烧渣为原料，采用机械活化硫铁矿还原法制备绿矾具有成本低、反应快、产品质量高等优点。 cnki |