reduction n. 1.缩小,减少;降级,降位;(刑罚等的)轻减;减速;减价,折扣。 2.(城市、国家等的)陷落,投降,被征服、变成 (to; into)。 3.破落,没落;【物理学】衰减。 4.类别;碎矿;提炼。 5.【数学】简化,约简,缩减;化归。 6.(测量结果的)整理,(代号等的)译解;【无线电】订正。 7.【化学】还原法,改格法;【摄影】减薄。 a 10% reduction 九折。 great reductions in prices 大减价。 the reduction of armaments 裁(减)军(备)。 ascending [descending] reduction 由小[大]单位改成大[小]单位的换算法。 reduction to absurdity=reductio ad absurdum.
The preparation of ferrous sulfate from pyrite cinder by reduction roasting method 用熟化法从硫铁矿烧渣中提取铁
Abstract : zinc calcine contains a small amount of refractory zinc ferrite that can be reduced by reduction roasting 文摘:锌焙砂含有少量难溶的铁酸锌,通过还原焙烧可以降低铁酸锌含量。
This paper explores mainly the influence of reduction roasting temperature , time and pulverized coal consumption on content of soluble zinc 本文主要探讨还原焙烧温度、时间和煤粉用量对可溶锌含量的影响。