Taking copper sulphide mineral as study objects, the studies of chalcopyrite heating and pressure pre-oxidation leaching process were conducted in acid system adding chloride.
以硫化铜矿物为研究对象，在添加氯盐的酸性体系中，开展了黄铜矿加温、加压预氧化浸出过程研究。
The sealing technique of FED is introduced in this papers, which include the selection, mixing and painting of low fusing point glass, the process of heating and pre-process of the flat glass.
介绍低熔点玻璃材料封接工艺，主要包括低熔点玻璃材料的选择、调制、涂覆、加热处理以及玻璃基板的预处理。
For the process of the fiber taper drawing, the pre-heating time and stretching speed are carefully examined for parameter optimization.
在加热拉伸过程工艺方面，本文从预加热时间和拉伸速度两个角度进行研究，对参数进行优化处理。
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