naphthalene ball

基本解釋

A marble-sized ball, originally of camphor but now of naphthalene, stored with clothes to repel moths.
衛(wèi)生球一種彈子大小的球，原本由樟腦制成，現(xiàn)在由荼制成，與衣物存在一起以驅(qū)除蛾子。
http://www.iciba.com
In no-smoking home kitchens the two main sources of naphthalene were cooking and volatilization of camphor ball, accounting for 64% and 36%, respectively.
在不抽煙家庭廚房中，衛(wèi)生球的揮發(fā)、烹調(diào)對(duì)萘的貢獻(xiàn)率分別為36%，64%；
Additionally, the high level of Naphthalene were considered with the increasing motor -driven vehicles and the use of camphor ball in hotels and in families in Xiamen City.
另外廈門(mén)海區(qū)水體中萘含量與以前相比很高，通過(guò)對(duì)比判別，認(rèn)為與廈門(mén)地區(qū)日益增多的機(jī)動(dòng)車(chē)、居民與賓館大量使用樟腦丸有一定關(guān)系。