Circular economy is the essence of ecological integration of ecology, which is based on the principle of the establishment of the symbiosis of ecological industry chain coupling system. 循环经济的实质在于生态整合,即依据生态学原理建立生态产业链的共生耦合系统。
In this paper, oscillatory plus mean flow coining from arbitrary directions around a circular cylinder is analyzed by direct integration of N-S equations using a hybrid method between a finite-difference method ( FDM) and a finite-element method ( FEM). 本文用有限元有限差分混合法解不可压缩非定常NS方程来直接模拟振荡流加任意方向均匀来流流场中圆柱绕流情况。
The scale circular economic benefit is thought as one of important motive forces of company growth and horizontal integration, closed-loop integration and diversification on industrial ecological relationship will be strategies and methods of company growth. 认为实现规模循环经济效益是公司增长的重要动因之一,横向一体化、闭环一体化和基于产业生态联系的多样化是基于循环经济的公司增长战略与方法;
The circular economy technologies of the petrochemical industry have been confirmed through survey and expert review, and the basic steps of the integration and optimization of the technologies have been confirmed by case analysis. 同时,通过调研及专家评审确定了石化行业循环经济技术,并通过实例分析基本确定了该循环经济技术的集成与优化的步骤。
Based on the discussion above, conventional GPS signal acquisition algorithms are simulated, which includes FFT method, circular coherent method, delay and integration method and long data processing method. 在此基础之上,仿真了传统的GPS信号捕获算法,传统捕获方法的FFT实现,循环相关捕获方法,延迟与积累捕获方法以及长数据相干处理。
As to the high consumption, high pollution of chemical industry, it demands the chemical industrial park development to implement the circular economy mode which is integrated with clean production, comprehensive utilization of resources, ecological design and sustainable consumption patterns integration. 对于化工工业高消耗、高污染的情况,要求化工工业园发展清洁生产、资源综合利用、生态设计和可持续消费融为一体的循环经济模式。
The VCSELs show many unique advantages in high power applications due to advantages such as circular output beam, low divergence angle, easy shaping and coupling, not subject to COD, convenience in 2D array integration. VCSELs具有的圆形输出光斑,发散角小,易于整形和耦合,不易发生光学灾变损伤,可以二维集成等特点使它在高功率输出方面有许多独特的优势,已成为研究的热点。