washing column

例句：

1. 1. The washing column isdesigned to efficiently clean clothes.
   洗涤柱设计用来高效地清洗衣物。
2. 2. The newwashing column has a largercapacity than the old one.
   新的洗涤柱比旧的容量大。
3. 3. Thewashing column was installed in the laundry roomto save time and energy.
   洗涤柱被安装在洗衣房以节省时间和能源。