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A new idea for specific surface area standard reference materials which are made of nonporous mono-disperse SiO2 spheres and the true specific surface area can be calculated accurately from their diameters is presented.

提出一种新型比表面积标准物质的研究思路，即用无孔的单分散SiO2微球作为比表面积标准物质的材料，它的"真实"比表面积可以通过对其粒径的准确测量，用几何的方法计算出来。

It is also a Winner of the Oppenheim Gold Seal Award and iParenting Media Award for Excellent Products.

这个标签球是一种帮助宝宝成长的玩具，它获得"欧本汉玩具系列金奖"以及"网际亲子媒体评选之最佳网际媒体奖"

In this paper, a general, strain-consistent, third-order displacement field of shells is proposed. On this basis, the nonlinear theory of composite laminated shells including third-order transverse shear deformation and rotary inertia is developed. Hamilton's variational principle is used to derive the nonlinear static and dynamic governing differential equations and the corresponding boundary conditions of composite laminated anisotropic general shells under the orthogonal curvilinear coordinates. And the form of spherical shells is degenerated.

本文提出了一种最普遍的应变协调、三阶壳体位移场，在此基础上建立了考虑三阶横向剪切变形和旋转惯性的复合材料层合壳体非线性理论，用Hamilton变分原理导出了复合材料层合各向异性任意壳体在正交曲线坐标系下的非线性静、动力控制微分方程和相应的边界条件，并将其蜕化为球壳形式。

It has been found that compressive and flexural strength increases with increment of the density of lightweight alumina bubble ceramics surface-modified by aluminum dihydrogen orthophosphate and orthophorphoric acid due to in-situ formation of aluminum orthophosphate, and the results of the two surface-modifier were similar.

在原位反应生成磷酸铝烧结轻质氧化铝空心球陶瓷中，磷酸二氢铝、磷酸两种结合剂结合陶瓷的耐压强度和抗折强度随配方密度提高而提高，且较为相近。

The judging speed is accelerated To assure generating correct tool paths in 3-axis NC machining, the processing plans of undercut and overcut situations for whole tool trajectories are discussed Sometimes certain of complex problems can be simplified using an approximating surface offset strategy presented The surface reconstruction technology in reverse engineering is studied deeply.

讨论了三轴数控加工球头铣刀关于整个刀轨路径的漏切与过切的检查和处理方法，保证最终生成正确的刀具路径。研究了曲面偏距问题，提出了一种曲面近似偏距新策略，在保证正确结果的前提下，将复杂问题简单化。深入研究了逆向工程中散乱数据点的曲面重构技术。

The paperweight was the room he was in, and the coral was Julia's life and his own, fixed in a sort of eternity at the heart of the crystal

镇纸便是他呆的屋子，珊瑚便是他跟朱莉亚的生命。他们的生命，在这水晶球的中心，也分享了一种永恒。

Effect of recovery methods after thawing After thawing, the highest viability was obtained when beads of Pavlova viridis were incubated in culture medium for 48h in darkness at room temperature. As to other two algae,the suitable recovery method was to incubate beads over saturated NaCl solution in a closed jar for 12h in darkness at room temperature.

化冻后恢复方法的影响化冻后，绿色巴夫藻的胶球在培养基中室温下暗放置48h后存活率最高；另两种金藻在含有过饱和的NaCl溶液(75%RH)的密闭气相中室温下暗放置12h存活率最高。

A continuous flow of energy is supplied to the photosphere to make good the prodigious losses by radiation.

有一种连续不断的能流供给光球，以弥补辐射造成的巨大损耗。

The marine microalga Porphyridium cruentum attracts increasing interest for it contains many valuable compounds such as phycoerythrin, sulfated exopolysaccharides and polyunsaturated fatty acids that are applied in the food and pharmaceutical industries.

紫球藻是属于红藻门的一种海洋微藻，在生长过程中能合成硫酸多糖、多不饱和脂肪酸、藻胆蛋白等生理活性物质。

This is a throw of the game mobile phone technology, in a rectangular area on shouting piste.

这是一种掷球技术手机游戏，在一个矩形的领域上大叫

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。