The breaking down reasons of the small float head bolts in an acid stripping unit and primary exchanger for feed water are analyzed.
对酸性水气提装置侧线与原料水一次换热器的小浮头螺栓的断裂原因进行了分析，并提出了相应的对策和推广新材料的建议。
These include stripping it out of the tailings from gold and copper mines, and also from phosphoric acid produced during the manufacture of fertiliser.
其中包括从金矿和铜矿的矿尾中提取铀，以及利用化肥制造过程中产生的副产物硫酸。
This stripping method was demonstrated to be little damage to cashmere fiber, and more suitable for acid dyed cashmere yarn.
显微镜观察发现此剥色方法对羊绒纤维的损伤小，尤其适合酸性染料染色的羊绒纱线。
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