?四氯苯酚
... 四卡因盐酸盐 tetrachloprophenol 四氯苯酚 Tetrachlorethylene 四氯苯 tetrachloroethane ...
The level of the cancer agent tetrachlorethylene used for cleaning semiconductors at one of the plants was 9, 400 times the permissible limit.
ECONOMIST: Toxic waste in Japan
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