链式项链

即使到了今天，对于全国的妈妈们来讲，她的雏菊花环项链依然象征着新鲜的奶制品。

maple syrup urine disease, branched-chain ketoaciduria

Oriental chain fern root

timing chain

chain termination

conveyer chain with means for load the load(magnet-, suction gripper)

closed chain driving sprocket【矿】

chain termination

maintaining predetermined winch-chain tension