The article introduces choices of direct purge on gas transmission system displacement method, determination of purge criteria, its technological process and control, then its reliability.
介绍城市煤气输配系统置换方式的选择、置换参数的确定、置换工艺流程及指标的控制，说明直接置换方式的可靠性。
This paper introduces a cut tobacco adsorbed conveyer belt for high speed cigarette machine which is designed and developed by oneself, and its technological process and parameter, mechanism design.
吸丝带是烟厂吸附法输送烟丝的主要部件，易耗、成本高。本文介绍了自行设计、研制的吸丝带，其工艺流程、工艺参数及机械设计情况。
The feasibility, cost and theoretic basis of the continuous extrusion process for producing tin brass weld wire are studied with its technological process and the design of extrusion dies introduced.
本文论述了锡黄铜焊丝连续挤压工艺的可行性、成本和理论基础，介绍了连续挤压工艺的方案以及挤压模具系统的设计。
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