性能描述

The dynamical processes of nutrient release were described correctly by Elovich equation S(subscript t=a+blnt, double constant equation InS(subscript t=a+hlnt and parabola diffuse equationS(subscript t=a+bt^0.5 and nutrient release rate could be described by parameter b of all equations.

结果表明，20℃恒温模擬条件下缓释复合肥氮、磷、钾养分缓释性能较佳，3种养分释放的动力学过程可用Elovich方程S=a+blnt、双常数方程InS1=a+blnt和抛物线扩散方程S=a+bt^0.5表征，各方程参数b值均可用於描述缓释复合肥氮、磷、钾养分释放速率。

The constant of electrostatic charge decay time is an important physical quantity that can describe the electrostatics property ofmaterials.

静电衰减时间常数是定量描述材料静电性能的重要物理量。

In order to improve the reliability of the nuclear Generating Sets and the stabilization of the power system, prevent the long time low frequency oscillation caused by the disturbed of the outside electrical net, assured improving the stabilization margin of the nuclear generating sets in the precondition of enough transient stability, validate the sensitivity of the parameter to the damping of Generating Sets of the MEC5220 digital excitation adjustor produce in Japan that used in the Second Project of Qinshan Nuclear Power Plant, confirm the parameter rationality of the digital excitation adjustor, optimize the parameter of PSS, in this paper, we put up a in-depth study to the principle of MEC5220 digital adjustor produce in Japan by the PSS/E software that develop by the PTI Company in the USA, completed the modeling of the excitation adjustor, PSS, generator, excitor, described the performance of this excitation adjustor, analyzed the essential reason that caused the low frequency oscillation, illuminated the factor that influence the damping characteristic of the MEC5220 digital excitation adjustor. Based on model and emulate, this paper optimized the primary parameter of the excitation adjustor, make a reasonable regulation to the PSS parameter.

为提高核电机组的运行可靠性和接入系统的安全稳定性，防止在外电网的干扰下核电机组发生长时间的低频振荡，保证机组在暂态稳定的前提下提高其稳定裕度，验证秦山核电二期核电机组所配日产MEC5220型数字式励磁调节器参数对机组阻尼的灵敏性，确定数字式励磁调节器的参数的合理性，优化PSS整定参数，本文利用美国PTI公司研发的PSS／E软件对日产MEC5220型数字调节器的原理进行进行了深入细化的研究，完成了励磁调节器、PSS、发电机、励磁机的建模，描述了该型励磁调节器的性能，分析了产生低频振荡的根本原因，阐明了影响阻尼特性的因素。

The mathematical fitted curve is similar to experimental ones.

因此所建立的动力学模型可以用来定量描述低能质子辐照下石英玻璃光学性能随辐照吸收剂量的变化规律。

To describe quantitatively the relationship between the floc formation, structure, behavior and function, is of significant importance both theoreticly and in application perspective.

深入研究混凝过程本质，定量描述絮体的形成、结构、行为与性能以及诸影响作用关系，对混凝工艺过程的调控与实施，具有重要的理论价值与广泛的应用前景。

In this project the coagulation dynamic of PACls and Al13 has been systematically investigated. The fractal theory has also been introduced to describe the various floc structure formed and their physico-chemical properties as well.

从系统研究系列PACl与Al13形态的混凝动力学特征出发，开创性地引入分形理论，定量描述了不同操作条件下絮体分形结构的形成、性能及相互关系。

Use of EDA tools and hardware description language, According to the specific requirements of product design to the high cost performance system on a chip, which is widespread international use.

利用EDA工具和硬件描述语言，根据产品的特定要求设计性能价格比高的片上系统，是目前国际上广泛使用的方法。

The first natural frequency map in working space was drawn,which can be useful for selecting proper working position to avoid resonance or low-order harmonic oscillation.

为了描述柔性并联机器人的弹性动力学性能，分析了机器人振动频率的特征。

The calculate way that this text put forward can withdraw to imbed in the information in the edge effectively.

实验证明，这种结构描述子可以有效捕捉边缘信息，提高的检索性能。

In the sense, these generic application and interface descriptions have to be in line with the respective IMO performance standards.

在这个意义上，这些通用的应用程序和接口描述必须合乎各自的国际海事组织性能标准。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。