单词cultch
n.: 贝壳屑网络: 采苗用之贝壳；废物；牡蛎卵
贝壳屑
A male hermit crab had found a very big cultch, was then clean the shell cleaning up, has made own house.
一只公寄居蟹找到了一只很大的空贝壳，便把贝壳清理干净，做成了自己的房子。
raft and cultch culture of oysters and mussels.
牡蛎和贻贝筏式养殖和碎壳床养殖