使增加密度

Fluorescence occurs when ultraviolet radiation from just outside the visible spectrum is absorbed and re-emitted as visible light,thus increasing the total amount of light refected from a surface.Fluorescent brightening agents are commonly added to paper and boards to make them brighten and whiter and to increase the possible density range that can be achieved when printing on them.

荧光发生时，紫外线辐射从外面可见光谱吸收和再音量为可见光，从而增加总额轻refected从surface.fluorescent增白剂补充常用纸张和议会，使他们 brightenandwhiter，并把可能的密度范围时，才能得到印刷出来。

Besides, annealing also smoothes the film surface and enhances the density and refractive index of the films.

退火处理使薄膜的表面粗糙度降低、致密度增加、折射率增大。

The results show that in Cu/Copper-coated graphite composite,the volume density and the electrical conductivity decreased with the increasing of copper-copper-coated graphite,while the graphite in it is fairly well-distributed and the copper helps to form the three dimensional net-shape,thus making the composite have better electrical conductivity than the c...

结果表明，随镀铜石墨含量的增加，铜-镀铜石墨复合材料的密度和导电性降低，但其组织中石墨分布更均匀，并且铜有利于构成三维网状，使该复合材料具有更好的导电性。

Among the various conductive fillers, carbon fibers have been proved to be a good candidate for EMI shielding. However, the electrical resistivity of a carbon fiber is much higher than the metal filler, so it must to use a greater number of carbon fibers in order to achieve the same shielding effect. In recent years, the Electroless plating is the new techniques of surface treatment of carbon fibers used to improve the electrical conductivity of carbon fiber. The copper-coated and nickel-coated carbon fibers have been proved to be a good candidate for EMI shielding.

导电高分子填充材料多使用碳纤维、碳黑及金属粉末，其中碳纤维具有高导电性、低密度及复合材料之补强特性，故本研究碳纤维作为填充材料，将碳纤维经过无电电镀处理，使其表面分别披覆金属镍及铜，增加碳纤维之导电度，混掺於聚丙烯高分子基材中，制成具有电磁波屏蔽功能之高分子复合材料，研究不同高分子成型方式与金属镀层对於碳纤维电学性质及复合材料电磁波屏蔽效益之影响。

The performances of devices degrade notably when the irradiation dose is larger than these thresholds.(3) The electron-hole pairs in oxides and interface states on Si/SiO〓 induced by radiation, which also can lead the voltage drift of control transistor in pixels, were the chief reason that leads the increase of dark current density in pixels.

3分析认为：辐照在像素的氧化层中诱发的电子—空穴对和Si/SiO〓界面形成的界面态使像素暗电流密度增加；同时也导致转移晶体管的阈值电压漂移，这是造成器件性能退化的主要原因。

Mowing reduces the above ground biomass and density of community, reduces fine grass percentage in the community, increases forbs and leads habitat worsen.

割草使群落地上生物量和密度下降，优良牧草在群落中的比例减少，杂类草增加，并引起生境条件恶化。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。