Shingles are often dipped in creosote.
屋顶板常浸涂木焦油。
Shingles are often dipped in creosote.
屋顶板常浸涂木焦油。
In Estonia three types of shale tar have been used as alternatives to anthracene oil or carbolineum.
尼亚,已有三种页岩焦油用作蒽油
氯化蒽油的替换物。
Two-stage cold coal gas station consists of two-stage coal gasifier, electric detarrer, indirect cooler, electric deoiler, air cooler and coal gas pressure adder.
两段式冷气站是由两段式
气发生炉、电捕焦油
、间接冷却
、电捕轻油
、风冷
及
气加压机组成。
Epoxy or plastic liming may be cast into the concrete pipe during manufacture;or bitumastic or coal tar epoxy may be painted on the concrete pipe surfaces after installation.
可以制造混凝土管道时将环氧和塑胶衬里浇筑
里面,
安装后用沥青砂
焦油屠宰混凝土管的表面。
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