loop chain
... loop box 变址寄存器 loop chain 环链 loop direction finder 环状天线测向器 ...
endless chain
... an endless chain 环链 an endless belt 无接缝皮带 make endless repairs 作无数次的修理 ...
circular linked list ; Circular List ; Circularly-linked list ; L- NextL- priorL
Electric Chain Blocks ; HHBB ; Electric chain hoist ; NITCHI
block chain ; chain block