区域提纯材料 zone refined material; zone-refined material
材料 1.(原料) material 建筑材料 building material; 原材料 raw material; 廉价材料 cheap materials; 防火材料 fire-resisting material; 橡胶是一种弹性材料。 rubber is an elastic material.2.(资料) data; material 参考材料 reference material; 档案材料 archival material; 第一手材料 firsthand information; 调查材料 data; findings; 搜集材料 gather material; collect data; 学习材料 material for study; 书面材料 written material; 他正在为写陶渊明传记搜集材料。 he is now collecting material for a biography of tao yuanming.3.(适于做某种事的人才) makings; stuff 他不是做教师的材料。 he is not the stuff teachers are made of.; he does not have the makings of a teacher
材料表 b/m (bom) bill of material; bill of material (bm); bill of materials; bm (= bill of material); list of materials; material list; material schedule; materials statement; shop bill
Intrinsic semiconductors are those in which the electrical behavior is based on the electronic structure inherent to the pure material 本征半导体是电学性质基于纯材料的电子结构的半导体。