单词	backing ring
释义	backing ring noun : a metal ring used inside a butt-welded joint to reinforce the joint and to prevent weld metal from entering the pipe at the joint Word History First Known Use 1937, in the meaning defined above
随便看	devisat vel non gleby Glechoma glechomae glechomas glechomata Glecoma gled glede gledes Gleditschia Gleditsia gleditsiae gleditsias gleds glee glee club glee clubs gleed gleeds gleeful gleefuler gleefulest gleefuller gleefullest

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。