precleaning[pri:'kli:ni?]预清洗
3)precleaning spout预清洗槽
1.The choice of scheme, manufacturing process and service condition of pickling galvanized chemical treating spouts consisting of precleaning spout, pickling spout and poaching spout have been analyzed, and it shows that the spouts fulfill requirements for mounting and using, which provides fine base for further processing products made by Hangang .对酸洗镀锌化学处理槽 (预清洗槽、酸洗槽、漂洗槽 )的制造方案、制造工艺 ,安装使用效果做了分析 ,该槽满足了安装生产使用要求 ,为产品的进一步深加工奠定了良好的基
4)precleaning[pri:'kli:ni?]预清理，预清洗
5)pre-rinsing process预清洗工艺
1.Optimization of pre-rinsing process for improvement in color sheet quality and reduction of water consumption;提高彩板质量和降低水耗的预清洗工艺
6)pre-cleaning operation预清洗操作
延伸阅读
预清洗分子式：CAS号：性质：在装置投产之前或在停车检修后，进行化学清洗之前所进行的水洗或其他物理方法清洗。预清洗的目的是减少化学清洗剂的用量。
