The characteristics of filter between no precoat and precoat were compared.

介绍了江苏省内精密过使用情况,对比了不预涂和预涂过特点。

Studies on heat exchanger aluminum fin precoat of air conditioner were reviewed. Six types of precoat as well as the application of hydrophilic precoat were described.

顾了热交换预涂层铝散热片研究概况，介绍了6种类型预涂层散热片材料基本情况以及亲水性预涂膜散热片应用效果。提出了该课题今后研究方向。