覆层

My preference for thatch control is core aerification and topdressing.

对枯草层的控制建议优先选择打孔和覆沙。

By means of SEM , the surface of coated graphite is investigated,showing that graphite has been coated by aluminum hydroxide evenly

通过SEM对石墨试样的表面形貌观察表明，改性石墨表面均匀地包覆了一层Al 3。

The anticline structure model of overlaying variable velocity layer was established and the physical modeling testing and migration processing analysis carried out.

建立了上覆变速层的背斜构造模型，并对物理模拟实验结果和偏移处理效果进行了分析。

The whole valley floor, and the foothills too, would be carpeted with lupines and poppies.

整个谷底和山麓都覆被上了一层厚厚的羽扇豆和罂粟花。

The experimental comparisons and researches to p-type silicon cone and wedge arrays coated by four kinds of metals with same structures are done, and show that the gold and aluminum will be hopeful cathode materials of field emission devices which operate at low vacuum and atmospheric pressure.

对结构相同的覆四种不同金属层（Au，Al，Ni，Cr）的p型硅尖锥和楔形体阵列进行了实验比较研究，表明金、铝可望成为低真空和大气压环境下工作的场发射器件的阴极材料。

In future, that skin will be clothed in a uniform made up of three layers.

在未来，士兵的皮肤将覆上三层材料造的制服。

This paper deals with the phosphor used in FED, which works based on the principle of special cathodoluminescence. A processing method brought forward is that green phosphor ZnS:Cu,Al coated with a layer of SiO_2 film by sol-gel method.

针对用于FED的荧光粉应该是适合FED特殊工作机理的专用阴极射线激发发光材料，提出一种以绿色荧光粉ZnS：Cu，Al为基质，采用溶胶-凝胶法在其表面包覆一层SiO2薄膜作为FED用荧光粉。

The results showed that phosphating followed by coating acrylic acid can improve the adhesive strength. Increasing water temperature and the concentrations of cellulose nitrate in the buffer layer, decreasing the concentrations of R-2 resin and solvent can reduce the elongation.

结果表明，铝材表面经过磷化处理后，用丙烯酸金属涂料涂覆，可提高水转印后粘接性，转印时水温升高，过渡层配方中硝化棉增多，随R-2树脂减少，以及溶剂的减少都会使伸长率下降。

New zinc film can cover the former zinc film, for it has strong confluent performance, easy to fix up.

新的强力锌可覆涂已有的强力锌层，它具有独特的重融性，修复简单。

Oxidation, decarburization and ablation of Cr3C2-BaF2CaF2 during spray were avoided due to the protection by NiCr layer.

表而包覆的致密NiCr层抑制了喷涂过程中颗粒的氧化、脱碳初烧蚀。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。