核果类水果去核作业是水果加工业中十分重要的前处理工序。
Coring is a very important pretreatment during the processing of stone fruits.
介绍了锌合金压铸零件的前处理工序及钝化工艺，前处理工艺包括抛光、脱脂除油、活化等。
The pretreatment and passivation of zinc alloy parts were introduced. The pretreatment process includes polishing, degreasing and cleaning, activation and so on.
简要介绍了汽车用铝板的涂装前处理工序，如脱脂、表面调整、化成(磷酸盐处理)等，并对其工序的处理要点作了分析。
This paper presents process of pretreatment such as degrease, surface adjustment, phosphating, and analyses the essentials of the working procedure.
介绍了氧化工艺参数，前、后处理工序，黄铜基体材质状况等因素对黄铜化学转化膜质量的影响。
Influences of parameters for oxidizing process, pre and post treatment procedures and material status of brass substrate on quality of chemical conversion film on brass were described.
对亚麻织物前处理工艺中草酸酸洗工序进行了研究。
Resarching the oxalic acid rinsing process in the pretreatment technology of flax fabric.
本发明包括镀前工序、刻蚀工序、镀铬工序、水洗工序、除氢工序、松孔工序、水洗烘干工序、镀锡处理工序。
The invention comprises the following procedures: preplating, etching, chromium plating, washing, removal of hydrogen, hole loosing, washing and drying and tin plating treatment.
广泛应用于电镀、涂装、电泳、喷漆等工艺的前处理及后处理工序。
Widely used in electroplating, painting, electrophoresis, painting of the pre-treatment and post-treatment.
广泛应用于电镀、涂装、电泳、喷漆等工艺的前处理及后处理工序。
Widely used in electroplating, painting, electrophoresis, painting of the pre-treatment and post-treatment.
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