Finer, more uniform and denser zinc crystals were attained by secondary zinc coating with better covering capacity.
二次浸锌得到的锌晶粒比一次浸锌更细小、均匀和致密，对基体覆盖能力好。
The casting pure zinc is often chosen as sacrifice anode covering on the surface of steel-foot to prevent the corrosion.
选择浇铸纯锌做牺牲阳极覆盖在钢脚表面的方法，能够有效地防止钢脚的腐蚀。
The separation and enrichment of zinc as a necessary pretreatment in its determination covering recent years, pertaining especially to the methods of liquid membrane separation, are reviewed.
就近年来国内外富集分离的方法进行了综述，着重介绍液膜分离法。
应用推荐