They inhaled toxic dust and vapours as the material seethed in primitive cauldrons to extract the mercury.
当原材料被放入原始的煮锅烧沸以提炼水银时他们吸入有毒的粉尘和蒸汽。
2
Advanced mechanism to simplify treatment technology to extract both big and fine granularity dust.
先进的机理，简化了处理工艺，即可除大颗粒粉尘，又可除细粉尘。
3
Conclusion Both extracts of birch wood dust may be initiators, and carcinogenic effect of the water extract is stronger than that of the organic extract.