The purpose of oil refinery is to refine crude petroleum.
油

要
作

原油。


油

气
油
The purpose of oil refinery is to refine crude petroleum.
油

要
作

原油。
The pipeline links the refinery with the port.
管道将
油
与港口连接起来。
They built a sugar refinery.
他们建起了一座榨糖
。
The process is carried out by taking refinery paraffin, palmic acid, mineral butter, ceresine wax and candle essence as raw materials, heating, dissolving, and mixed freezing to obtain final product.
它
由精
石蜡、棕榈酸、凡士林、微晶蜡、蜡烛香精等原料经加热溶解、混合凝固成为带香味
彩色蜡烛粘土。
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