表面 surface; superficies; boundary; face; rind; sheet; skin; outside; appearance 表面之词 a superficial statement; 表面价值 face value; 粗糙的表面 a rough surface; 光滑的表面 a smooth surface; 地球的表面 the surface of the earth; the face of the earth; 事物的表面 the surface of things; 表面上气壮如牛, 实际上胆小如鼠 outwardly fierce as a bull but inwardly timid as a mouse; 你不能只看事情的表面。 you must not look only at the surface of things. 他那番话不过是表面文章。 he was merely paying lip service
Powder metallurgy . sintered metal materials , excluding hardmetals . determination of apparent hardness . part 2 : case - hardened ferrous materials , surface enriched by carbon or carbon and nitrogen 粉末冶金.硬质合金除外的烧结金属材料.表面硬度的测定.第2部分:表面富集碳或碳和氮的表面硬化钢铁材料
Based on the " self - migrating and surface - segregation " behavior , the amphiphile segregation surface was therefore constructed on hydrophobic pdl - la matrix , which containing the structure of peo spacer combining cell adhesion ligands to mimic the extracellular matrix ( ecm ) 基于两亲共聚物在疏水高聚物材料内的自迁移和表面富集行为,在聚乳酸材料上构建了以peo桥联氨基酸或整合素配体多肽片段的类细胞外基质表面。