Asphalt

(noun.) a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons.

(noun.) mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing.

(verb.) cover with tar or asphalt; 'asphalt the driveway'.

手打:路易

• By thus manipulating the various solvents you will be enabled probably to separate the crude asphalt into several distinct hydrocarbons. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• A similar stove with jets of flame from vapour burners has been used to soften hard asphalt pavement when it is desired to take it up. 威廉·亨利·杜利特. 世纪发明.
• It ended at the paving of asphalt which led up to the gates of the Mapleton stables. 阿瑟·柯南·道尔. 福尔摩斯回忆录.
• Hughes, who went with Edison in 1879, and was in charge of much of the work, states that they were second street-car rails, insulated with tar canvas paper and things of that sort--asphalt. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• After you can go no further, distil off all the solvents so the asphalt material has a tar-like consistency. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Until I get at the proper method of pouring and getting rid of the air-bubbles, it will be waste of time to experiment with other asphalts. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

整理:鲁道夫