特性

On the basis of an analysis on the characteristics of image formation of roof Abbe prism and of the structure of double Dove prism, the paper presents a reflecting image rotator consisting of mirrors.

在对立方棱镜的结构特性和阿贝棱镜的成像特性分析的基础上，提出了由反射镜组成的反射式像旋转器，并证明了该反射式像旋转器在平行光路中的像旋特性。

The basic equation and its combustion index can only be used to correctly determine combustion cheracteristics before the combustion rate has reached its maximal value,while the new combustion index can be used to correctly adjudge characteristics in the whole combustion stage.

但是，在利用热重实验曲线研究燃料燃烧特性时，许多研究者往往根据现有燃烧特性经验公式和热重曲线的特征点来研究煤的燃烧特性，但是对这类燃烧指标的可行性和局限性却很少报道。

Nonlinear frequency response characteristics of a 2K-H planetary gearing system with multiple backlash has been calculated by using the developed analytical MDOF harmonic balance method, and has been compared with corresponding linear system. Again, influence of parameters on dynamic behavior is discussed.

通过采用本文推导的多自由度解析谐波平衡法求解2K—H行星齿轮机构的稳态响应，本文计算了间隙存在时行星齿轮系统的非线性动态特性，并就系统的非线性动态特性与线性系统的对比以及参数对行星齿轮系统动态特性的影响进行了分析。

One is low valence vanadium oxide thin films were deposited by direct current facing target magnetron sputtering firstly, and then thermal oxidated; the other is high valence vanadium oxide thin films were deposited by ion beam sputtering, then thermal deoxidated. Vanadium oxide thin films with phase transition were obtained at the lower thermal process temperature 300℃, which is compatible with MEMS technologys. The composition of VO_x thin film fabricated by first method includes mainly VO_2, V2O3 and VO_, the TCR is -2.25%/K, the TCR gradually increases with phase transition temperature decreases. The composition of VO_x thin film fabricated by the second method includes mainly VO_2, V2O5 and V2O3 , and the resulting VO_x thin filmTCR is -3.0%/K. The TCR of phase transition vanadium oxide thin films made by second method is higher than that made by first method for the existance of V2O5 in thin films.

分别采用直流对靶磁控溅射制备低价态氧化钒薄膜再附加热氧化处理的方式，和射频离子束溅射制备高价氧化钒薄膜附加热还原处理的方式获得了具有相变特性的氧化钒薄膜，第一种方式获得相变特性氧化钒薄膜的热处理温度最低为300℃，克服了以往高温条件下热处理不能与MEMS工艺兼容的缺点；相变特性氧化钒薄膜的组分以VO_2为主，含有V2O3和VO_，室温TCR为-2.25%/K；室温电阻温度系数随相变温度的降低逐渐升高；采用第二种方式获得的相变氧化钒薄膜的组分以VO_2为主，含有V2O5和V2O3，室温TCR可达-3.0%/K；分析发现，具有相变特性的氧化钒薄膜中含有V2O5时，室温电阻温度系数明显增大。

When we study statistical distribution of DCT residues, we found the decreasing speed is too great in the tail of approximating distribution than the real DCT residues distribution if Laplacian distribution is used to model the DCT residues, and this will cause some mismatches in the tail of approximating model.

在采用DCT残差系数作为FGS增强层编码器的信源时，DCT残差系数的统计特性决定着FGS增强层的码率失真特性，而DCT残差系数的统计特性则是由DCT系数的统计分布特性和相应的量化过程所决定的。

The sketch and specific design approaches of mid-block street crossing are generalized and three management and control modes are discussed. Based on extensive investigation and survey, the paper analysis the arriving laws in different land-use condition and the traffic characteristics of different crossing entities under different control modes. The initial characteristic, the speed and dispersion of the mobile flow are also intensive studied, as well as the effect of mid-block street crossing. Establish the linear planning models on the coordination between the signals of mid-block crossing and intersection. Finally the evaluation of the model output is carried out from time saving results, safety, economic results and social results. Set the example of Taiping north road in Nanjing, surveying the traffic situation, applying the method of signal coordination between the mid-block crossings and intersection to realize the south-to-north signal coordination design. The evaluation results show the coordination plan are more superior to the current signal plan.

本文首先阐述了行人过街物理设施的概略设计和详细设计方法，讨论了路段人行横道的三种交通管制方式的设计方法和实用条件；其次，在充分的实际调查基础上，详细分析了不同用地性质条件下的过街需求的到达特性和不同交通管制下不同过街实体的交通特性，分析了进入路段的机动车初始流特性，并对机动车在路段中的车速特征、离散性以及路段信号控制人行横道对机动车流的影响进行了研究；然后，根据以上分析的过街交通和机动车交通的交通特性，建立了路段行人过街信号与交叉口信号协调控制的线性规划模型；最后，对模型输出的协调控制方案进行了效益评价分析，从时间效益、安全性、经济效益和社会效益四个方面，定量和定性相结合地对其实施效果予以评价；以南京市太平北路路段为例，根据现状交通状况，应用行人过街信号与交叉口信号协调控制的方法，对该路段由南向北方向进行单向协调控制设计，并进行方案效益分析评价，提出了优于现状控制方案的人行过街信号与交叉口信号协调控制方案。

The experiments were conducted with one-crop cultivar and two-crop cultivar of Iris germanca . Photoperiod in nature condition and the effects of different photoperiods on flower bud differentiation and photosynthetic characteristics were investigated.

本试验以德国鸢尾一次花和二次花品种为材料，从植株生物学特性和光合特性两个层面上，研究一二次花品种在自然状况下的光合特性以及不同光周期对其花芽分化和光合特性的影响。

The paper elaborates the status of Shale shaker dynamic measurements, the basic dynamic characters and the measure mechanism of Shale shaker, signal processing, involving vibration signal of time-domain analysis, frequency-domain analysis, amplitude-frequency domain and Shale shaker dynamic measurements functional analysis etc.

论文对振动筛动态特性检测仪的现状，振动筛动态特性及检测分析、信号处理方法等都做了详尽的研究，包括振动信号的时域分析、频域分析、幅值域分析及关于振动筛动态特性检测功能分析等，完成了智能控件化振动筛动态特性检测仪的功能建模和这些功能的程序设计，并提供了相应的功能接口函数。

The author presented a theoretical and experimental study on pump transmission characteristics of a system including a rotation system of shaft as well as hydraulic circuit.

所叙述的水泵传递特性理论与实验研究，传递系统除水压和流量特性之外，还包含了水泵转轴的转动力矩和转动速度特性，从而较为完整地表现包含水力与动力两方面的水泵总体特性。

The starting character that studies electric machinery of ultrasonic of wave of laden be issued to lower levels in development, moving character, timing character, pace enters characteristic, area on the foundation of laden ability, announced load affects the pattern to small step pilot, the robot much freedom that put forward to be based on drive of electric machinery of travelling wave ultrasonic spends articulatory and exact location to control a method.

在深入探究负载下行波超声波电机的启动特性、运行特性、调速特性、步进特性、带负载能力的基础上，揭示了负载对微步控制的影响规律，并提出了基于行波超声波电机驱动的机器人多自由度关节精密定位控制方法。

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。