有多种意义的

That can be done by anyone , and the combinations that could be so formed would be infinite in number, and the greater part of them would be absolutely devoid of interest.

这是任何人都能做的，而能这样形成的组合也将有无限多种，其大多数肯定是没有任何意义的。

There are many kinds of salts in gound water, salt lakes and salty soil in China's western region, and deicer salts have effects on frost resistance and corrosion resistance of cement concrete or corrosion resistance of steel bar in reinforced concete.

我国西部地区地下水、湖水中以及土壤中含有多种盐类，道路除冰盐对混凝土的抗冻性以及耐腐蚀性以及钢筋锈蚀有很大的影响，而混凝土年平均经受的冻融次数对混凝土结构设计具有重要意义。

But above research were all based on network whose parameters and topology structure were determinate. Network system in practical circumstance often presents randomicity because of influence of some factors. So it often causes some errors when apply traditional network flow theory to practical problems. It is significant for improving network flow theory's practicability to optimize network flow in stochastic circumstance. This question has drawn attention.

但以上研究都是在网络参数和拓扑结构固定的网络上进行的优化，而实际环境中的网络系统受多种因素影响往往会表现出随机性，所以传统网络流理论在具体应用时与实际情况会有一定的偏差，如果能在随机环境下对网络流进行优化，对提高网络流理论的实用性和针对性均有重要意义，这个问题已越来越引起关注。

The sixth, this thesis synthetically utilizes many kinds of modern statistical method and the econometrics model to research how policy event affect stock market influence, especially it has successfully applied the condition VaR model, Hesin test, BDS test, recursion BDS test, VAR model and pulse response analysis, EGARCH model and news response curve in the empirical analysis, and obtains some regular conclusion.

六、将多种现代统计方法和经济计量方法综合运用于政策事件影响中国证券市场波动问题的研究中，特别是成功地应用了条件VaR模型、Hsieh检验、BDS检验、递归BDS检验、经济计量模型、VAR模型及脉冲响应分析、EGARCH模型及其消息反应曲线等方法，得出了若干有意义的结论。

Hydroxyl ketene dithioacetals were treated under diversely catalyzed conditions, and a wide range of significant compounds and synthetic precursors thus were obtained.

羟基二硫缩烯酮类化合物可以通过各种不同的反应条件进行多种转化，能够获得许多有意义的化合物和合成潜体。

Life has a lot of meanings. However, among which the most important thing is to realize sel walue. What have you down for others?

生命有很多种意义，但其中最重要的是实现自身价值，你为他人做了什么？

The results show that there is good correlation between total ground flash number of convective storm and environmental stratification factors.

随着雷电探测技术的发展，国内外利用闪电定位系统和多种雷达对对流风暴进行了大量的观测，取得了许多有意义的结果。

Some one asked Edison :"you have experimented on over one thousand materials, but they all turn out unfit as lamp filament ,what is the point of your experiment?"

有人问爱迪生，你试验一千多种材料，结果是都不能做灯泡的灯丝，你的试验有什么意义？

Some one asked Edison :"you have experimented on over one thousand materials, but they all turn out unfit as lamp filament ,what is the meaning of your experiment " Edison answered:I come to know

有人问爱迪生，你试验一千多种材料，结果是都不能做灯泡的灯丝，你的试验有什么意义？

China has more than 10 kinds of gentle kungfu , have the meaning of fitness.

中国有十多种温和的功夫，都有健身的意义。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。