能量流动

土壤主要微生物生理类群数量的减少削弱了土壤中C、N等营养元素的循环速率和能量流动。

And in turn the decrease in major soil physiological groups weakened the circulation rate and energy flow of nutrition elements such as nitrogen and carbon .

使用AutoSEA软件计算各个子系统间的能量流动，应用等透声量设计原则，找出车辆室内降噪的薄弱点。

Using software Auto SEA to calculate the energy flow between the sub-systems and under the Equal Penetration Sound Degree rule , the weak points of vehicle inner noise control are found out .

生态网络是对生态系统中物质、能量流动模拟的结构模型，再循环指数CI反应了物质在生态网络中的再循环特征。

Eco-network is a structural model which simulates the flow of material and energy in ecosystem , CI ( Cycling Index ) reflects the recycling feature of material flow .

结果表明，生物生产性能不断提高，能量流动日趋优化。物质投入、产出比例尚待进一步调整，K素亏缺现象仍然严重。

Results show that the system 's bio-productivity is increasing , and energy flow is becoming more optimum , while ratio of material output to input should be improved , and K deficiency is still very serious .

三相PWM整流器是目前整流器领域研究的热点，由于其具有双向能量流动性，以及交流电流波形和功率因数任意可控性，应用场合越来越广泛。

Three-phase PWM rectifiers , which have more and more widespread applications , is in a hot research area , because their ability of two-way energy flowing , as well as arbitrary AC current wave and power factor .

采用热焓法和ANSYS生死单元技术模拟得到了不同模型的烧蚀形态、温度场、应力场和质量烧蚀率，以此为基础分析了不同组元间能量流动的路径和相互作用的特点。

Heat enthalpy method and ANSYS element birth and death technique were adopted to calculate the ablation profile , temperature field , stress field and mass ablation rate . Based on the result , some conclusions of the interaction characters were obtained .

结果表明：光纤传感的灵敏度与扰动有一定的线性关系，利用光纤扰动技术产生光纤内部的能量流动，可实现光纤CO2气体传感。

The results show that certain linear relation exists between the sensitivity and disturb in optic fiber sensing , and the optic fiber sensing for detecting CO2 gas can be realized by energy flow within optic fiber through the optic fiber disturb technique .

根据熔融碳酸盐燃料电池（MCFC）电堆内部物质能量流动分析得出的温度分布数学模型是一组偏微分方程组。

The working principle of the molten carbonate fuel cell ( MCFC ) is a heat and mass transfer process going with electrochemical reactions .

以土壤、大气和植被系统（SPAC）能量流动与物质转换机理为指导，建立了中国能量与水平衡遥感监测系统（CEWBMS）；

Guided by theories on energy flow and materials exchange within Soil Atmosphere Plant Continuant ( SPAC ), a Chinese Energy and Water Balance Monitoring System ( CEWBMS ) had been established .

与35℃相比，在48℃，特别是在52℃的较高剂量热胁迫下，Strasser能量流动模型参数中的DIo/RC有大幅度地增加，体现了热耗散对PSⅡ的较强保护能力。

In comparing with 35 ℃ heat treatment , the DI_o / RC in the parameters of Strasser 's specific energy fluxes model was increased by a great extent under 48 ℃ or more heat stress , reflecting a strong safeguard of energy dissipation to PS ⅱ .

与传统UPQC相比，它特殊的拓扑设计本身就可避免交流短路和直流电容直通故障，因而无需引入变压器等隔离环节，且仍可保证串并联单元之间的能量流动。

Compared to the traditional ones , its special topology design can inherently avoid the AC or DC system short circuit , so that no extra isolating circuits , i.e. transformers , are needed and the energy exchange between its series and parallel units can still be ensured .

阿克苏地区农业生态系统的物质与能量流动

Materials Cycle and Energy Flow in Agroecosystem in The Aksu Area

路径作为生态网络组成的一个基本单元，是生态系统中物质、能量流动的通道。

Aths are flow channels of energy and matter in ecosystems .

藉以阐明谐振直流环能量流动，进行参数优化；

The energy flow elaboration and system parameter optimization are accomplished .

物质循环和能量流动是海洋生态系统运转的两个基本过程。

Substance-recycling and energy-flowing are two basic processes in marine ecosystem .

基于多微电网间的能量流动特性，建立系统的能量管理模型。

Based on energy flow among microgrids , model description is established .

对这类装置中能量流动和补偿电压控制问题进行了分析。

The energy flow and compensating voltage control in DVR are analyzed .

池塘生态系统能量流动的基本过程

Process of energy conversion in pond eco - system

论生态系统的能量流动瘦素与能量平衡

ON THE ENERGY FLOW OF ECOSYSTEM Discussion on Thin Plain and Energy Balance

汽车混合动力传动的能量流动与比较

Energy Flow and Comparison of Automobile Hybrid Power Transmission

这些差异是由于物质和能量流动速率的差别造成的。

These differences are due to the differences in flows of energy and matter .

能量流动是所有生态系统内在的共有的功能特征之一。

Energy flow is one of the inherent and common function characteristics of ecosystems .

非线性原理即熵定律分析人类生态系统中能量流动；

Analysing the energy flow in human ecosystem with unlineal principle ( entropy law ) .

论生态系统的能量流动

On the energy flow of eco system

受控与自控棉田生态系统的能量流动研究

Study on the Energy Flow of Cotton Field Ecosystem Controlled by Insecticide and by Nature

农田防护林人工生态系统物质循环与能量流动研究

Study on the matter circulation and energy flow of an artificial ecosystem of the farmland shelterbelt

燃料电池客车采用多动力源的动力系统结构，需对其能量流动进行有效的控制。

For Fuel Cell Bus with multi-power sources configuration , energy flow must be efficiently controlled .

不同施肥结构对稻田氮素循环和能量流动影响的分析

Analysis of Effects of Different Fertilization Structure on Nitrogen Cycling and Energy Flow in Rice Fields

南海北部生态系统食物网结构、能量流动及系统特征研究

Assessing food-web structure , energy flows , and system attribute of northern South China Sea ecosystem

大亚湾海域生态系统模型研究I：能量流动模型初探

Study on the ecosystem model of Daya Bay I. A preliminary approach on energy flow model