预膜 meaning in English

perfillmimg
prefilming

Industrial circulating cooling water determination of calcium for phosphorus - zine prefilmingtluid
工业循环冷却水中磷锌预膜液中钙离子测定方法
Technology - technical code for on line chemical cleaning and prefilming under the load of heat of recirculating cooling water system
循环冷却水系统不停车化学清洗和热态预膜工艺技术规程
Industrial circulating cooling water - determination of zinc for phosphorus - zinc prefilming fluid - atomic absorption spectrometric method
工业循环冷却水用磷锌预膜液中锌含量的测定原子吸收光谱法
Method of use : as dispersing agent of fe2o3 for preparing membrane , as scale - preventative for equipments of industrial water
2用途：本品可用作预膜时三氧化二铁的分散剂，工业用水设备的防垢剂。
Industrial circulating cooling water - determination of calcium for phosphorus - zinc prefilming fluid - atomic absorption spectrometric method
工业循环冷却水用磷锌预膜液中钙含量的测定原子吸收光谱法

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