单词	简明性
释义	简明性 simplicity
随便看	projection tube projection TV projection TV receiver projection TV set projectiontype projection type projection-type projection type cathode ray picture tube projection type chaser projection type television receiver projection uncertainty projection-valued measure projection vector projection velocity projection vertexometer projection view projection viewer projection viewport projection way projection wekder projection wekding machine projection weld projection-weld projection welded cap projection welded joint