查询词典 performance

This paper will analyze the mechanical performance of the wheel and design a test-bed to test the performance of the lunar rover's wheel. Firstly, the mechanical characters of the soil are separated to press-sinkage character and shear character based on Bekker's theory, and common press-sinkage and shear models are introduced and the theory of Lankine passive earth pressure is also introduced. These basic theories are helpful to construct model.

根据Bekker半经验法的基本思想，将土壤的力学特性分解为水平方向的剪切特性和竖直方向的承压特性，阐述了地面力学中常见的土壤的承压、剪切等力学模型，并引入了朗肯被动土压力理论，为建立车轮在松软土壤中前进和转向的力学模型奠定了基础，同时进行了实验土壤的剪切实验，测量了土壤的内聚力和内摩擦角等参数。

How to assess the controler's performance, do the faulty detection and forecast it is not only this paper concerns but also attracts many scientists and engineers to research it. This paper uses minimum variance as bench mark, does the performance assessment for the deaerator's control system with filter and correlation arithmetic.

如何评估控制系统的性能，预报故障的发生，并诊断引起控制性能下降的原因，已经引起了学术界和工业界的广泛重视，本文在这方面进行的研究具有一定的实际意义。

Finally, the engine performance test results on the engine test bench show that the inlet , exhaust and turbo charging system can meet the engine performance requirement.

最后通过整机台架性能试验说明，所采用的进、排气增压系统能满足设计要求。

Preliminary investigation on the system performance is conducted on an engine bench. The results show that this method is feasible without any negative influence on diesel power performance. The exhaust gases can be heated up to 500℃ over a wide operating range within a short period.

研究结果表明，新的供气方式是可行的，且未对发动机动力性带来不利影响，所设计的燃烧器再生系统能在较大发动机工况范围内迅速提升排气温度至500℃以上。

This paper analyzes the factors that affect the performance of silicon oil fan clutch and the key configuration.A kind of silicon oil fan clutch has been developed,performance and experimental data of silicon oil fan clutch are summarized through bench testing.The test results show that the optimized clutch can make a response to temperature and has less consumption of power.

硅油风扇离合器不仅可以减少发动机有效功率的损耗，改善发动机的经济性，提高发动机寿命，而且能有效的降低发动机噪声，具有广阔的应用前景[1]。1结构及工作原理硅油风扇离合器是用硅油作介质，利用硅油高粘度的特性来传递转矩，其结构如图1所示，当发动机负荷增加时，水温升高，从散热器吹来的热空气使双金属感温片受热而扭转变形，带动阀销一起转动并通过感温片变形量的大小控制进油阀开度。

The performance of EFT is investigated, which indicates that time-frequency distributions using single-sided window could not accurately trace the variation of the instantaneous frequency, since their performance depend only on the history of the signal, so they are biased frequency estimator.

提出了基于对称阵元互Wigner分布平均的瞬时频率估计算法，这种方法利用多通道数据对时频分布的瞬时频率估计方法的性能进行了有效的改善，并且能够在低信噪比的条件下获得良好的估计效果， 6。

AIM: To analyze the influence of Photomultiplier Tube voltage biasing circuit on the performance of PMT, and to take corresponding measures for elevating the accuracy of PMT voltage biasing circuit accuracy to improve the performance of PMT.

目的：分析光电倍增管电压偏置电路对光电倍增管性能的影响，并采取相应措施提高光电倍增管电压偏置电路的精度，以改善光电倍增管的性能。

In the legal profession, revenue growth is the key performance imperative and billable hours is the most important metric of performance.

在法律界，收入增长是必要的，关键绩效个小时是最重要的度量的表现。

The dissertation begins a deep discussion of the main parameters which may affect the performance of dynamic binary translation and optimization system, and proposes the annotation directed binary translation and optimization, which combines the static compilation and dynamic compilation to improve the performance of the binary running on the computer system.

首先，本文在深入探讨了动态二进制翻译系统中影响性能的主要因素的基础上，提出了注解信息制导的翻译及优化方法，来结合传统编译器和动态二进制翻译和优化系统以提高二进制代码在计算机系统上的运行性能。

Secondly, the steady-state productivity model for horizontal well in gas reservoir is established. On the basis of solving the model, this thesis elicits the binomial deliverability equation by which absolute open flow potential and inflow performance relationship can be got and we can forecast the production performance of horizontal well in gas reservoir. In the end, on the basis of the theoretical analysis, this thesis explores homologous nodal analysis program.

其次，在建立水平气井不稳定渗流数学模型并求得其解的基础上，推导出了考虑地层伤害及非达西渗流影响水平气井产能方程，通过该产能方程可求出水平气井的绝对无阻流量，绘制流入动态关系曲线来预测生产动态；最后，在理论分析的基础上建立了水平气井节点分析方法，并开发了相应的节点分析程序。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。