The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface.
这次爆炸将大约100万亿吨的尘埃提升到大气中，这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
As the electroplating pure copper layer on copper alloy exceeds a critical thickness, the surface electroplating treatment can improve the copper alloy's resistance against oxidation failure greatly.
当铜合金表面的电镀纯铜层厚度超过一个临界值，表面电镀纯铜处理可以明显改善材料的耐氧化剥离性。
The best polishing can be obtained while the depth of particles indented into wafer surface was equal to or near to the thickness of soft layer.
提出当磨料嵌入晶片表面的最大深度等于或接近于软质层厚度时，在理论上应具有最佳的抛光效果。
The surface hardness, carburized structure and thickness of the carburized layer on the TiAl-alloy obtained through the different carburization technologies was studied.
试验研究了钛铝基合金离子渗碳后的渗层组织结构、渗碳温度和时间对渗层厚度、表面硬度的影响。
It was found that the morphology of the surface strongly depended on the thickness of the buffer layer.
发现薄膜的表面形貌强烈地依赖于缓冲层的厚度。
By varying cast-penetration technics, the influence of thickness and quality in composite layer with si by casting on the surface of cast steel were studied.
研究了不同铸渗工艺对铸钢件表面铸渗硅复合层厚度和质量的影响。
The influences of surface treatments, the pressures during bonding process and the thickness of adhesive layer on shearing strength were investigated with epoxy resin-DDS curing system as adhesive.
采用环氧树脂-DDS固化体系作为胶接剂，探讨了各种金属表面处理方法、胶接时对胶接面施加的压力、胶层厚度等因素对胶接剪切强度的影响。
If the fluid is agitated, the thickness of the surface layer become reduced.
如果液体被搅拌，则表层厚度将减小。
The width and surface temperature of the radiation surface are directly related to the thickness and material of the filling layer.
辐射面的宽度、表面温度与填充层的厚度和材质有直接关系。
Each layer of loose paving thickness should be 30cm, paving the last degree should be uniform, the surface should be smooth after compaction.
每层的松铺厚度以30cm为宜，摊铺阼度应均匀，压实后的表面应平整。
With the increasing of the thickness of copper layer, the electric ability of the surface is also improved and the exterior resistivity of different surface is also more identical.
随着镀铜层厚度的增加，木材表面的导电性有明显的提高，同时不同切面各方向上的表面电阻率的值也趋于一致。
In combination with the gravimetric method, one can obtain the adsorption amount of water and the thickness of adsorbed water layer on solid surface under various driving gradient pressures.
结合重量分析，用离心法可得到不同驱动压力梯度下的吸附水量及吸附水层厚度。
We demonstrate successful application of BPD based RF estimation from synthetic data for a crustal model with a near‐surface thin layer of thickness 5, 7, 10, and 15 km.
我们展示了基于合成数据接收函数估测BPD成功应用于近地表厚度为5，7，10和15公里的薄层内的地壳模型。
The thickness of diffuse layer and the surface roughness of molybdenum alloying layer increase with increasing the Ti6Al4V base temperature.
随着基体温度的升高，扩散层的厚度增加，并且合金层表面粗糙度增大。
The said method can compound alloy layer with high quality and adjustable thickness on the surface of casting with different shape.
本方法可以在不同形状的铸件表面复合合金层，保证了铸件合金层质量，合金层的厚度可以调节，因而有很强的适应性。
For obtaining high surface hardness and great thickness, the main factors which affect the nitriding layer structure and properties were analyzed, and the optimized parameters were obtained.
以获得较高表面硬度和渗层厚度为依据，分析影响渗氮层结构和性能的主要工艺因素，确定出最佳工艺参数。
The results show that a certainty thickness' intensified layer and satisfying surface quality with high micro-hardness and go…
研究结果表明，合适的工艺参数和加工时间，能使工件的表面获得具有一定的厚度、较高硬度和耐磨性的强化层。
The influence of the thickness and concentration of the cap layer, as well as the component of the substrate, on the surface states is also obvious.
包覆层的厚度和掺杂浓度，以及基底的成分都能显著地影响表面电子态。
When the thickness of the surface layer of the facade or top surface is greater than 10mm.
立面或顶面的面层厚度大于10mm时应分层施工。
The results show that the stress in ceramic layer is mainly for lateral compressive one, and its maximal stress occurs in the place that is at the distance of 1/3 thickness from coating surface;
结果表明，陶瓷层内的残余应力主要表现为横向压缩应力，且最大值位于距陶瓷层表面1/3厚度处；
The calculations of radiator surface area and heat insulation layer thickness are necessary for the design of passive thermal control system.
纳卫星的被动热控系统对卫星舱内的温度控制及其有效载荷的可靠工作具有重要意义。
The effect of the added rare earths on the thickness, surface quality, hardness and corrosion resistance of the layer were studied.
研究了稀土对镀层厚度、表面质量、镀层硬度和耐腐蚀性的影响。
The relative thickness of alloy coating cake in mould is the key factor influencing thickness of alloyed layer on surface of casting.
铸型中合金膏块相对厚度是决定铸件表面合金层厚度的主要因素；
After several hydrothermal synthesis steps, a dense intergrown zeolite crystal layer about 15~20 mm in thickness was formed on the outer surface.
重复合成5次后，在载体表面形成一层致密、连续的沸石晶体层。
3 selection should preferred coated thin fire retardant coatings, the selection of thickness of coating type paint, exterior to do decorative surface layer vibration protection.
3选用时宜优先选用薄涂型防火涂料，选用厚涂型涂料时，其外需做装饰面层隔护。
3 selection should preferred coated thin fire retardant coatings, the selection of thickness of coating type paint, exterior to do decorative surface layer vibration protection.
3选用时宜优先选用薄涂型防火涂料，选用厚涂型涂料时，其外需做装饰面层隔护。
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