化为

The 21st century is a digital and network and information into the core of the information age.

21世纪是一个以数字化、网络化与信息化为核心的信息时代。

The Video Surveillance System has been developed into the third generation, which is characterized by digital network.

视频监控系统已经发展到了以数字化和网络化为特征的第三代，在得到越来越广泛的应用的同时，也不断面临着新的需求与挑战。

We have gradually entered a new world which character is digitalization,with the development of the information technology.

随着信息技术、计算机技术、空间技术的发展，我们逐渐进入了以数字化为特征的时代，在我们熟悉的物质城市的身边也充满了这种现象。

At the research course with eigenvalues of digraphs,all need to hold digraph melt into form of matrix,research eigenvalue of matrix again.

在研究有向图的特征值的过程中，都要把有向图化为矩阵的形式，再研究矩阵的特征值。

Dialkylmethylamine was produced through the reaction of fatty alcohol with methylamine as one of the products of dimethylamine disproportionation.

通过对月桂醇和二甲胺进行胺化反应过程中气相成份的分析，证实了在脂肪醇和二甲胺胺化反应体系中存在二甲胺歧化为甲胺和三甲胺的反应，二甲胺歧化反应生成的甲胺和脂肪醇进行反应是副产物双长链烷基甲基叔胺生成的主要原因。

Methods The DIO and DIO-R rat models was established by high fat diet. The rats were killed in 2 and 12 weeks. Situ hybridization and immunohistochemistry were used to measure the expression of NPY mRNA and protein in the rats.

高脂饮食建立DIO与DIO-R大鼠模型，分别于2周、12周末处死，采用原位杂交和免疫组化为法检测下丘脑弓状核神经肽Y的mRNA和蛋白表达情况。

The liberalization of the economy of the former Soviet Union has made Russian Diopside more available than even before.

前苏联经济自由化为俄透辉石的供应带来了前所未有的发展。

The initialized parameters of neural networks are selected, which is directed by rough set theory, and the networks are trained by using a probability-based BP algorithm, which minimizes system errors.

首先，利用粗糙集理论对神经网络初始化参数的选择和确定进行指导，赋予各参数相关的物理意义；然后，以系统输出误差最小化为目标对粗糙神经网络进行训练，使其满足性能要求。

But with more economic planning than the United States, China has been able to disburse its stimulus much faster, turning it into new rail lines and highways.

但是有着比美国更多经济计划的中国，能够快得非常多地实施其刺激措施，将之化为新铁路和高速公路。

Based on the ICMmethod,the discrete topological optimization problem about spot-weld's existence or not is transformed into the continuous optimization problem on[0,1].The optimization model is founded with maximizing the structural stiffness as objective and structural strength as constraints.The problem of multi-objectives and multi-constraints is transformed into the problem of single-objective and single-constraint with the K-S function.The displacement and stress are transformed into the explicit function of design variables with the Response Surface Methodology.The optimization model is solved with Sequential Quadratic Program.

基于ICM（Independent Continuous Mapping，即独立、连续、映射）方法，将焊点有无的离散拓扑优化问题转化为[0，1]区间上的连续优化问题；建立了以结构刚度最大为目标、结构强度为约束的连续拓扑优化模型；采用K-S函数将多目标和多约束问题转化为单目标和单约束问题；运用响应面方法将位移和应力转化为设计变量的显式函数，采用序列二次规划方法求解优化模型。

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。