Sewerage

(n.) The construction of a sewer or sewers.

(n.) The system of sewers in a city, town, etc.; the general drainage of a city or town by means of sewers.

(n.) The material collected in, and discharged by, sewers.

欧内斯特整理

• About 3,500 patents have been granted for water closets and bath appliances, and about 900 patents on sewerage alone, the most of which are directed to improved conditions of sanitation. Edward W. Byrn. 十九世纪发明进展.

编辑:维姬