In Estonia three types of shale tar have been used as alternatives to anthracene oil or carbolineum.
在爱沙尼亚,已有三种页岩焦用作或氯的替换物。
In Estonia three types of shale tar have been used as alternatives to anthracene oil or carbolineum.
在爱沙尼亚,已有三种页岩焦用作或氯的替换物。
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