1. 水垢：补充水经由给水软化器予以软化,以免锅炉内壁产生水垢(Furring). 凝水泵将冷凝水送过三个加热器,并附以其它水泵,依次由低压而中压而高压,又经省煤器提高其温度,使进入锅炉的水,事先获得相当的热能,故在炉管中巡回受热时,

2. 抹灰板条：furr 水垢 | furring 抹灰板条 | furring brick 贴面砖

3. 衬板：furring strip 船旁衬条 | furring 衬板 | furring 垫条

4. 毛状迹痕：Fundamental frequency 基频 | Furring 毛状迹痕 | Gage pressure 表压

noun

1. strip used to give a level surface for attaching wallboard

Synonym: furring strip

2. a furlike coating of matter as on the tongue