This system is the extend of net sell, it is the integrated management system of an on-line sale computer fittings.
本系统是针对网上销售的延伸而设计的一个在线销售计算机配件的综合管理系统。
Basic knowledge of polyethylene material, pipe fittings specifications, pipeline construction specifications, technical points, management experience and design parameters.
聚乙烯材料基础知识、管材管件规格、管道的施工规范、技术要点、管理经验及设计参数。
It is suggested that the pipe fittings be replaced in addition to the strengthened management of dewatering of process streams and nitrogen protection of the pipelines during the shutdown.
建议更换同批管件，并应加强物料脱水工艺管理，停工期间对管道应进行氮封保护。
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