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- Teeth have a hard surface layer called enamel. 牙齿有一层叫做釉质的坚硬表层。
- To remove the surface layer of soil from(land). 去掉表土将土壤最上面的一层从（土地上）清除掉
- By means of multi layer and multi pass lap surfacing, the surfacing layer with big thickness and area can be acquired. 采用多层焊和多道搭接工艺可获得大厚度、大面积堆焊层。
- The results show that the structure of the surfacing layer was martensite, carbides and residual austenite. 试验结果表明：焊后的堆焊层组织为马氏体+碳化物+残余奥氏体。
- By CFS,thick surfacing layer with fine microstructure and reliable proformace could be got.Besides,the process had high efficiency. 采用摩擦堆焊可以得到大厚度、基本无稀释、组织致密、性能可靠的堆焊层,而且堆焊效率高。
- The results showed that the light beam Ni-based alloy powder surfacing layer can metallurgically bond with the Fe-C alloy substrate. 采用光束镍基合金粉末堆焊可在铁碳合金表面获得与基体冶金结合良好、无裂纹、轻度稀释的强化层。
- Such very easy the fibril skin surface layer also shave is dropped. 这样很易把皮肤表层的须根也剃掉。
- The results show that the microstructure of surfacing layer is made up of tempering martensite and carbonide, and its heat strength and red hardness are higher. 结果表明，表面堆焊层显微组织为回火马氏体+碳化物，具有较高的热强度和红硬性；
- The microstructure,hardness and wear resistance of high carbon and chromium content surfacing layer heat-treaded by different process were investigated in this paper. 研究了高碳高铬铸铁型硬质合金堆焊层在不同热处理工艺条件下的组织、硬度与耐磨性。
- The portion of the current confined to the surface layer becomes negligible. 流经上部地层的那部分电流变得可以忽略不计。
- Fish were surfacing to catch insects. 鱼浮到水面上捕捉昆虫。
- If the fluid is agitated, the thickness of the surface layer become reduced. 如果液体被搅拌，则表层厚度将减
- The skin " below surface layer " the feeling has small blain, how to do? 皮肤“表层下面”感觉有小痘痘,怎么办?
- Downflow chamber and surface layer were main purification space of pollutants. 下行流池表层基质是污染物降解的主要空间；
- Surface layer with high durability and an active humidity transferability. 拥有耐磨表层，有效的排湿功能。
- The macrohardness of welded surfacing layers is HRC60,the relative wear resistance is 21 times higher of steel Q235. 堆焊层硬度为HRC60,相对耐磨性为Q235钢的21倍。
- Immediately below the oxide film and often mingled with it in an intricate way is the true surface layer of the metal. 氧化膜的下面就是真正的金属表层，氧化膜常常与金属表面层以复杂的形式混合在一起。
- Results were obtained only for a surface layer on the tensile side of the plate. 只能在板的受拉侧的表面层得到结果。
- Yang S L,Lu X Q,Zou Z D.Wear resistance and wear mechanism of welded surfacing layers containing internally produced carbide particulates[J].Tribology,2004,24(6):508-511. [6]杨尚磊;吕学勤;邹增大.;含内生硬质碳化物颗粒的金属堆焊层的抗磨性能及磨损机理[J]
- To remove the surface layer,membrane,or fibrous cover of(an organ or a structure). 剥去剥去（器官或构造）的表皮、膜或纤维皮质
