411 REFERENCE · Wikibooks
English-Hanzi/Workplace exposure to silica dust, engine exhaust or welding fumes
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Workplace exposure to silica dust, engine exhaust or welding fumes can cause heart disease.
工作场所暴露于二氧化硅粉尘，发动机排气或焊接烟雾会导致心脏病。