使用得当的防晒系数为8或更高的防晒霜在完全阻挡紫外线辐射的同时也阻止了维生素d的合成。
Used properly, sunscreens with an SPF of 8 or higher completely block UVB radiation and prevent synthesis of vitamin d.
对各工况下的二维疲劳载荷，采用权系数的方法，合成并获得了多工况下的二维载荷联合概率密度函数。
Two dimensional fatigue loading under various working conditions is synthesized with weight coefficient method to obtain joint probability density function under multiple working conditions.
并通过子波和反射系数序列的褶积作出了合成雷达记录。
Also, the synthetic radar record is presented using the wavelets and reflection coefficients in series.
研制出由多组份粘合剂、混杂纤维及特殊填料制成的无石棉高摩擦系数合成闸片。
There were developed asbestos free high friction coefficient composition brake pads made of poly compound adhesive agent, hybrid fiber and special fillings.
根据雷达目标测绘区域的特点，结合地面目标的特性系数，给出了合成孔径雷达的目标测绘区域目标的模拟目标模型。
This paper describes the simulation targets model of the SAR scanning areas according to the characters of the radar targets in scanning area and the character coefficient of the ground targets.
论述了无石棉高摩擦系数合成闸片的研究技术关键。
It also briefs on the key technology of this asbestos free high friction coefficient composition brake pads.
合成材料具有更好的承载能力，更低的热膨胀系数，更好的耐磨性和更好的抗疲劳性能。
The composite material has resulted in greater load carrying capacity, a reduced thermal expansion, greater wear resistance and fatigue endurance.
依据有机概念图，通过测定分配系数和反应速率，应用缓释技术合成了二甲基乙醇胺。
In terms of the organic concept chart, the tardily releasing technique was used to synthesize dimethylaminoethanol by measuring the distribution coefficient and the reaction rate.
研究了18种具有不同孔结构参数的铜基甲醇合成粒状催化剂孔隙率对有效扩散系数的影响。
The influence of porosity on the effective diffusion coefficients was studied for 18 of Cubased catalysts, which have the different pore structure parameters.
针对目前在气象和气候要素变化分析中，对相关系数和合成分析使用统计检验存在的若干问题进行评论。
The comment on statistical test of correlation coefficients and others are given. The statistical test is used to apply to some analysis of climate variation of meteorological elements.
研究了18种具有不同孔结构参数的粒状铜基甲醇合成催化剂孔隙率对有效扩散系数的影响。
The influence of porosity of 18 kinds of Cu - based catalysts of methanol synthesis on the effective diffusion coefficients is studied. The catalysts have the different parameters of pore structure.
文中推导出了各种传播系数的表达式，计算出各不确定度的分量并将其合成。
Expression of various propagation coefficients, component of uncertainty and the combined uncertainty were deduced and calculated.
对比C301甲醇合成催化剂颗粒形状系数的测定值和计算值，证明了该装置的可靠性。
The experimental results of shape factor compared with calculated value of C301 catalyst indicated that this equipment is reliable to be used.
文章提出一种基于综合成本的加权系数法。
In this paper, a weight coefficient method based on integrative cost is proposed.
通过综合收益和综合成本的详细分析来计算企业合作阻力系数。
By the calculation of general income and general cost, this paper discusses the detailed process to compute the cooperation resistance coefficient.
当输入量之间的相关性存在时，必须知道了相关系数，才能计算合成标准不确定度。
When these input quantities were correlative, the combined standard uncertainty could not calculated if the correlation coefficient was unknown.
最后通过语音合成实验验证了该新型算法既提高了系数解的精度，又保证了系统的稳定性。
Finally the speech synthesizing experiment is carried out and the result demonstrates that it is not only proved to be an effective way that improves the precision but also ensures systemic stability.
为提高既有线的运行速度，开发了铸铁合成闸瓦，该闸瓦利用陶瓷粒子来提高摩擦系数。
The composite brake shoe of cast iron is developed to improve the running speed on existing line. The ceramic particles are used in the brake shoe to improve the friction coefficient.
应用曲线拟合方法将所得统计分析系数拟合成时间函数，就可将高原地区的气温和地面温度表示成统一的空间坐标和时间的函数。
It is indicated that the air temperature and ground temperature in the plateau can be expressed as functions of location coordinates and time.
提出了用相关系数、声波曲线对比和求剩余记录等方法来检查合成记录制作的质量。
Several methods, including correlation, correlation of acoustic curves, and calculation of residual error, are proposed to control the quality of synthetic seismogram.
提出了用相关系数、声波曲线对比和求剩余记录等方法来检查合成记录制作的质量。
Several methods, including correlation, correlation of acoustic curves, and calculation of residual error, are proposed to control the quality of synthetic seismogram.
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