硬纸管；卷筒芯
Made of plywood, cardboard, wooden planks and some clever mixture for tubing, this tunnel looks very natural.───这节隧道由胶合板、厚纸板、实木板和一些巧妙混杂的管道组成，看起来非常自然。
Most of the torpedoes were built from fibreglass and cardboard tubing and weighted to fall properly when dropped.
cardboard tube───硬纸管；卷筒芯
cardboard cities───纸板屋棚户区；贫民区
cardboard city───纸板屋棚户区；贫民区
cardboard cut-out───纸板切割
landboarding───着陆板
baseboard heating───踢脚板供热
airboarding───n.气垫板滑雪