The characteristics of filter between no precoat and precoat were compared.
介绍江苏省内精密过滤器的使用情况,对比
不预
和预
过滤器的特点。
The characteristics of filter between no precoat and precoat were compared.
介绍江苏省内精密过滤器的使用情况,对比
不预
和预
过滤器的特点。
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.
回调机热交换器预
铝
热
的研究概况,介绍
6种类型预
热
材料的基本情况以及亲水性预
膜
热
的应用效果。提出
该课题今后的研究方向。
This article expounds the in fluences from the aspects of precoating photosensitiser coating anddrying process on the quality of diazo paper.
本文以予,感光液
布及干燥三方面工艺论述对晒图纸质量的影响。
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