This paper describes the technological process, operating conditions, production practice and technical improvement of calcine leaching in zinc circuit.
介绍了锌系统焙砂浸出的工艺流程，操作条件，生产实践及技术改进。
The recent developments of modified pitch in China are introduced. The new manufacturers for pitch, improvement for technological process as well as its variation trends of standard are reviewed.
阐述了国内改质沥青的一些最新进展；介绍了一些新的改质沥青企业、生产技术的完善情况以及改质沥青的标准变迁情况。
The process of technological innovation is one of important sources to generate trade secrets, and also the protection for trade secret can promote technical improvement.
技术创新过程是商业秘密的重要源头，商业秘密权的保护也是促进技术创新的重要手段。
But the basement of current market standard and the uncertainty of technological improvement may mitigate the excess momentum in the process of market standards transition.
先发标准的安装基数、消费者对技术改进的不确定性，可以缓和标准转换中的过度动量，降低了市场采用新技术标准的速度。
Grinding is the biggest energy consumption process in mine production. Improvement of the grinding classification technological level is of great importance.
磨矿是矿山生产中能耗最高的工序，提高磨矿分级技术水平对于矿山有重要意义。
Grinding is the biggest energy consumption process in mine production. Improvement of the grinding classification technological level is of great importance.
磨矿是矿山生产中能耗最高的工序，提高磨矿分级技术水平对于矿山有重要意义。
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