科科拉
- 网络Kokkola;Cocoa;kok
科科拉-
科科拉（Kokkola）锌厂焙烧车间每年使用20多种不同的锌精矿，近些年，锌精矿质量变化的趋势增长，特别是细颗粒、低品位锌精矿的数量在不断增加。
The Kokkola roasting plant uses more than 20 different zinc concentrates every year . During recent years there has been an increase in the variation in concentrate quality ; in particular , the amount of fine-grained and low-grade concentrates has increased .
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科科拉锌焙烧炉最近的工艺改进
Recent process improvements in the Kokkola zinc roaster
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科科拉岛完全不是一家酒店，而是一个仙境。
Cocoa Island is not a hotel at all but a fantasy of one .