清洁卫生

Sawdust was used as a hygienic floor covering.

锯屑曾被用来铺在地上保持地面清洁卫生。

Straw has a air temperature, low - cost, clean, safe and reliable.

秸秆气具有供气温度， 价格低廉， 清洁卫生 、 安全可靠等优点。

Pay attention to the cleanness for the silk floss, avoid the pollution.

2：注意蚕丝被的清洁卫生， 以免使蚕丝被受到污染。

Manage the cleanliness , tidiness, storage conditions, security and safety of the warehouse.

负责仓库的保密 、 安全 、 保证清洁卫生的仓储环境。

The main field of hygiene is concerned with healthy living and cleanliness.

卫生学的主要领域是关于健康生活和清洁卫生。