A new type ultrafiltration membrane was prepared, and it is not only suitable for separation and concentration of the middle-alkali but also the non-alkali galss fiber lubricant wastewater.
本文介绍最近研制出的一种既适合分离和浓缩中碱又适合无碱玻璃纤维浸润剂废水的新型超滤膜。
The drawing tests of stainless steel (SUS304) with reaction bonded Si 3N 4 ceramics die lubricated with water base lubricant were carried out using a four columns YA 100 type drawing machine.
在YA-100型四柱液压拉深机上，进行了用反应烧结氮化硅材料凹模拉深不锈钢（SUS304）的试验研究。
Universal type synthetic oil, which covers the maximum current quality for the latest generation petrol and diesel engines, offering superior protection to that of any mineral lubricant.
半合成通用机油能用于近代汽油和柴油发动机的优质实用油品。比矿物油能给发动机更好的保护。
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