再循环

Biogeochemical cycle The movement of chemical elements from the physical environment into organisms and back to the environment in a more or less circular pathway.

生物地球化学循环：化学元素从物理环境进入生物体，再通过一条或多条循环途径返回物理环境的运动。

On the other hand, the world has gone into an era of knowledge economy, the manufacture technology of the automobile industry in the world is much more than design and production and should include its whole life period or periods from market investigation, development and amelioration, manufacturing, distribution, after-sales service, breaking-down and reclamation to new cycles.

一是我国加入WTO后，国产汽车要应对全球化的挑战；二是进入知识经济时代，世界汽车工业的制造技术应考虑和操作的不再止于产品的设计与生产，而应包括从市场调查、产品开发和改进、制造加工、销售、售后服务，到产品报废、解体、回收，再到循环使用、循环利用的产品整个生命周期和多个生命周期。

A new frequency estimation algorithm for Time Domain Synchronization OEDM system is proposed, which utilizes the time domain circular characteristic of PN sequences to adjust frequency offset and then uses a variable step frequency scan scheme to estimate large frequency offset.

提出一种新的适用于TDS-OFDM系统的频偏估计算法，利用PN序列的时域循环特性进行预频偏调整，然后用变步长扫频进行大频偏的估计，定时同步之后再利用PN的时域循环特性进行细偏估计。

The dematerialization was defined to be using less materials while providing the same or better service or function.It does not mean that materials and energy can be totally saved,but it meant that the high welfare economy could be realized through maximizing the usage of resources and energy.

循环经济这一物质闭环流动型经济，是以"减量化、再利用、资源化"为原则，以物质闭路循环和能量梯次使用为特征，这一发展模式的关键其实就是非物质化。

Eachcycle consisted of 45 sec. at 94℃ to denature, 45 sec. at 36℃ for theannealing primer, and 120 sec. at 72℃ for extension. The otherreactions were completed under 10 min. of extension at 72℃.

扩增反应在热循环仪上完成，程序设置为94℃变性处理45秒钟，36℃引物退火45秒种，72℃链延伸2分钟，依此作45个循环，然后再在72℃条件下使被扩增的链延坤10分钟完成全部反应。

The results show that the periodic average yield of acrylonitrile under any forced periodic oscillation of oxygen concentration among this experimental conditions,thus obtained could higher than that under the steady-state condition.

而为完成整个氧化还原循环过程，气相氧分子就必须在不同丙烯吸附中心的再氧化中心上吸附，获得电子，解离后扩散进入催化剂中的阴离子孔穴，如图1所示。从该机理可知，反应气氛中的氧烯比大小对催化剂表面的氧化还原反应过程的循环有重大影响。

AIM and METHODS:We adapted the none circulating method perfused rat heart and high performance liquid chromatography technique and compared with the control group, the ischemia reperfusion group and the Acanthopanox Senticosus group, studied the effect of Cordyceps Sinensis succi on the content of adenine nucleotides and MDA during ischemia reperfusion.

目的和方法：观察冬虫夏草对缺血再灌注过程心肌保护作用。采用Langendorff非循环式离体心脏灌流方法，与正常对照组、缺血再灌组、刺五加注射液用药组相对比，研究了冬虫夏草醇提取物对大鼠心肌缺血-再灌注过程脂质过氧化产物和腺嘌呤核苷酸含量的影响。

Based on various kinds of concepts and combined with the current practice of circular economy, this paper reconsiders the concept and connotation of circular economy.

摘要在总结各种循环经济概念的基础上，结合当前循环经济发展的实践，对循环经济概念及内涵进行了再思考。

Ericsson cycle provides the maximum efficiency at a certain temperature ratio, and the performance of any other thermodynamic cycle can be got by revising the performance of Ericsson cycle with component-perfection coefficients and cycleperfection coefficient.

该公式有很强的功能，可以估算循环的热效率、比功、水气比、极限效率、各设备性能对循环性能的影响以及采用再热手段后循环的性能，而且具有很高的精度，热效率与精确计算相比相对误差在0.5％以内。

It is confirmed that under the illumination of light the dark-adaptedBR is quickly turned into the light-adapted, and undergoes a photo-chemical cycle then through a sequence of intermediates of J, K, L,comes into a more stable intermediate-M state. M state relaxes to B state in about one hour. B state converts completely into D state after 24 hours. B state initiates the photochemical cycle under illumination, while it can transform into D state in the dark. So B state is a key intermediate in the BR photochemical cycle.

实验证实，样品受光照激发后很快从暗适应型经过光适应型进入光循环，经过一系列的光化学中间体到达较稳定的M态。M态经过约1小时热驰豫完全回到光适应型B态，B态再经过24小时缓慢热驰豫完全回到暗适应型D态。B态受光则进入光循环，不受光则转化为D态，从而认为B态是菌紫质光循环路径中一个重要的分支节点。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。