常見例句雙語例句If you can't, wear gauze mask or anything that can cover your mouth and enable you to breath.如果不行，戴上薄紗口罩或任何可以蓋住嘴巴又能保証呼吸的東西。Good ventilation is required in the casting shop and sanding shop. Operators must wear gauze mask at work to prevent harm of metal powder to human body.鑄造間、打磨間、通風(fēng)應(yīng)良好，員工操作時應(yīng)帶防護(hù)口罩，防止金屬粉塵給員工身躰帶來不利。http://qaxxj.hljbst.comGood ventilation is required in the casting shop and sanding shop. Operators must wear protective gauze mask to prevent harm from metal powder to human body.鑄造間、打磨間、通風(fēng)應(yīng)良好，員工操作時應(yīng)帶防護(hù)口罩，防止金屬粉塵給員工身躰帶來不利。http://lanling.hljbst.com 返回 gauze mask