Gonghua brand series diffusion pump oil is the work fluid used by metaldiffusion pumps and glass diffusion pumps in the process of vacuum pumping.
巩华牌系列扩散泵油是金属扩散泵及玻璃扩散泵真空抽气时使用的工作液。
2
From inner to outside, the composite pipe consisted of alumina ceramic layer, metal transition layer, white cast layer, carbon atom diffusion layer and nodular cast iron layer.
复合管从里到外由氧化铝陶瓷层、金属过渡层、白口铸铁层、碳原子扩散层、球墨铸铁层组成。
3
Metal solid transformation is simply classified into shear and diffusion type, which would lead to doubt and even confusion.