查询词典 variable-density system

This article analyzes the significance and the method of the evaluation of the forest carbon-sink,taking the artificial planta- tion of the Three-north shelterbelt forest system program as an example,uses the variable BEF (Biomass Expan- sion Factor) method to assess the value at the Three-north shelterbelt forest carbo.

对森林碳汇价值评价意义和方法进行了分析，并以三北防护林体系工程人工林为例，采用换算因子连续函数法对三北防护林的碳汇价值量进行了评价，提出了持续开展三北工程、提高人工林固碳能力的对策建议。

On the basis of the past research, the aims of this study include:(1) To establish the module of emotion induced by cognitive task;(2) To set up the assessment system of criterion of emotional stability;(3) To study on the effect of emotional stability to cognitive task performance;(4) To investigate the influence of situational variable on psychophysiological research of emotion;(5) To discuss the physiological differences between different emotional stability individuals under different situations.

在以往研究的基础上，本工作的主要目的如下：（1）建立情绪诱导认知作业模式；（2）建立情绪稳定性效标评价体系；（3）探讨情绪稳定性对认知作业绩效的影响；（4）研究情境变量对情绪生理心理学研究的影响；（5）探讨不同情绪稳定性个体在不同情境下的生理反应差异。

By a voltage-traced SPWM technology, the sine pulse width modulation wave was derived and the project of voltage output was designed. Resultantly, the microcontroller was fully used in the variable-frequency power system.

讨论了系统的硬件、软件设计和正弦脉宽调制波的生成和输出稳压方案的设计，采用了实时电压跟踪SPWM技术，使单片机在变频电源系统中得到了有效的应用。

The effective anti-wear additive system mini mizes wear in even the most soph is ticated valve train me chan is ms, including those with variable valve timing.

在有效的抗磨损添加剂磨损降到最低，即使在最先进的气门驱动机制，包括可变气门正时的。

Transverse momentum fluctuations,Φpt suggested by Gazdzicki and Stanislaw Mrowczynski has been considered as a variable which can distinguish the quark-gluon plasma from hadronic matter and reflect the degree of thermalization of a system.

Gadzicki和Stanislaw Mrówczyski建议的单事件横动量起伏Φ_被看作是鉴别夸克胶子等离子相与强子相、描述系统热化程度的物理量。

As the requirement of energy-saving and indoor environment gets higher and higher, variable flow technology are widely used in heating and air conditioning systems, namely by changing power or resistance to adjust the flow of the system、subcircuit and terminal equipment so as to match usually mutative dynamic heat load variation.

摘要随着节能和室内环境要求的愈来愈高，供暖和空调系统广泛采用了变流量技术，即用改变动力或改变阻力的方式调节系统、支路以及末端设备的流量，使之与经常变化的动态热负荷相匹配。

Teco Group, the current distribution in the world up to ten thousand people or more employees, can produce various specifications of standards and non-standard motor with variable frequency, has a system for 1/4HP to 60000HP, voltage from 110V to 13.8KV super complete range of high-voltage motors of strength, is the world's one of the three major motor manufacturers, and in many countries around the world and regional offices.

东元集团目前分布在全球员工达万人以上，能生产各种规格标准及非标电机变与频器，拥有承制 1/4HP至60000HP，电压由110V至13.8KV超高电压完整范围的马达之实力，是全球三大电机生产厂商之一，并在全球多个国家和地区设有办事处。

Stability, robustness and oscillation of differenct uncertain time-delay systems are analyzed. Synthetical time-delay control schemes are proposed, including robust stabilizing control, variable structure control, robust dissipative control and so on. Industrial time-delay system model are established based on the theorematic results and industrial requirements. Pratical control algorithms and APC-software are developed and applied to practical process successfully.

在国家自然科学基金资助下，本项目对各类不确定时滞系统的稳定性分析、振动性质分析、鲁棒镇定控制器设计等问题进行了全面的理论分析，并结合流程工业生产过程的特点和企业需求，建立工业过程时滞系统模型，开发实用型的控制算法和先进控制软件，在一些典型的工业生产过程进行了成功的应用，取得了显著的经济效益和社会效益。

In this thesis, an unmagnetized, collisionless dusty plasma which consisted of extremely massive, highly negatively charged dust particles, ions and electrons are studied. Considering the effects of hot dust fluid with non-thermal ions and variable dust charge, we study the self-consisted system parameters on the structures of the dust-acoustic solitary waves by reductive perturbation methods.

本论文研究无磁化、无碰撞的、由大质量且带负电量的尘埃颗粒、电子和离子组成的尘埃等离子体，考虑尘埃流体的温度、非热离子和尘埃颗粒电荷绝热变化的因素，使用约化摄动方法研究这个自洽的系统的参数对尘埃声孤波结构的影响。

Previously, the throughput performance of the DS CDMA unslotted ALOHA system with variable number of fixed-length packets was analyzed by the M/M/1 queueing model, an approximation of M/D/inf model.

中文摘要先前，直接序列分码多工/非同步阿罗哈系统藉由近似M/D/inf的M/M/1排队模型就分析过以可变的固定长度封包数方式之生产效能。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。