短语
道床层
ballast covering
床层裂化
bed cracking
离子交换剂床层膨胀率
ion exchange bed expansion
木炭床层
charcoal bed
填料床层限制器
support ware
床层分区
zoning of bed
催化剂床层撇头
catalyst bed skimming
床层空隙度
Bed porosity
;
bed voidage
双层床
[家具]
Bunk bed
;
double bunk bed
;
double decker bed
;
stratified bed
;
bunk bed