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。
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