More attention was focused on the effects of osmosis on the deposition speed, compositions, surface structure properties of the simultaneously deposited Pd-Ag alloy top layer by electroless plating.

重点研究了渗透压对化学镀共沉积钯银的沉积速度、镀层组成和膜表面结构性能的影响。

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To introduce the process of wire drawing process, chemical Cu-plating process and formulation of top grade submerged-arc welding wire for pipe line steel.

介绍管线钢用高等级埋弧焊丝拉丝工艺、化学镀铜工艺及配方。

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Especially, there are many stiffened plates in the hull of jack-up platform, for example the main deck, bulkhead, tank top and bottom plating.

在自升式平台的主船体中这种结构更是大面积的得到应用，其主甲板、舱壁、机械甲板和底板等都是板梁组合结构。

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