Ringon林贡
ringn.戒指;环;圈;拳击场;马戏场;帮派n.铃声;钟声;电话;口气v.包围;环绕;形成圈v.打电话;回响;鸣响;按铃;听上去
ring-type test圆环试验法
ring substituted环上取代
Ring micromirror环形微变形镜
ring chlorinated环上氯代
ring scale fungus松层孔菌
ring crush tester环压强度测定仪
ring-like space类环形空间
ring drilling rig环形钻架
ring-shank nail环轴钉
ring halogenation环上卤代作用