可变化

It constructs system around dealing with " course" of function , and the change of user s needs is for the function mostly. So the software use this technological development is poor in stability, alterability and getting reusable.

它是围绕实现处理功能的"过程"来构造系统，而用户需求的变化大部分是针对功能的，因此，用这种技术开发出来的软件，其稳定性、可修改性和可重用性都比较差。

Electrorheological technology is a new and marginal science, electrorheological fluid is a kind of smart material, with the control of external applied electric field, its coefficient of viscosity and shear yield stress can rapidly change, and this process is controllable, continuous, and reversible.

电流变技术是一门新兴的边缘科学，电流变液是一种智能材料，在外加电场的控制下，它的表观粘度和抗剪屈服应力可发生快速、可控、连续、可逆的变化。

The simulation results show that the optimal 2DOF PID controller has good dynamic response performance of both command tracking and disturbance rejection characteristics for the output power of the PEMFC.

仿真结果表明，经优化整定后的二自由度PID控制器，可使PEMFC的输出功率能较好地跟踪给定期望值的变化，同时也可更好地抑制外扰。

Now if we accept the Kantian view that subjective apprehension is always successive and atomistic, then arguably the only thing that can make the two perceptions commensurable, is if they are perceived as so many alterations of a single underlying external world.

现在，如果我们接受Kant式对'主体性apprehension一直是续起和atomistic『原子的/孤立的』'的看法，那么可论证仅有的使得两个感知事物commensurable『可同标准度量的』是是否它们是被感知为一个单一外在世界的相同多的变化。

In order to eliminate the influence caused by the nonminimum phase characteristic of a common Boost DC／DC converter, Viswanathan K has proposed a novel tristate Boost DC／DC converter. For enhancing performance, the statespace averaging model of this converter was first presented in this paper. Due to the nonlinear nature in this model, an inputoutput feedback linearization technique was adopted, and a complete controllable linear system was obtained. Then a statefeedback control strategy was designed based on this linear system. Simulation results show that the proposed control strategy can assure constant output voltage in a wide range, so as to realize the stability of the system during large fluctuation of power supply and load disturbance. Good dynamic performance can also be achieved.

针对 Viswanathan K为消除普通BOOST DC／DC变换器的非最小相位特性而提出的三态Boost DC／DC变换器，为进一步提高这种电路拓扑的性能，在建立了变换器状态空间平均模型的基础上，针对其多变量、非线性特点，采用输入输出线性化将其转化为一个完全可控的线性系统，在此基础上应用现有成熟的线性控制策略进行了控制系统的设计，并且采用MATLAB进行仿真验证，结果表明：这种非线性控制策略可以确保输出电压在大范围内恒定可调，且即使存在大范围扰动(输入电压和负载变化均较大)的情况下，系统也可以确保稳定性和良好的动态性能。

Japonicus, but also displayed the inhibition-effect, i.e., the change of MT levels in the copepod was correlated with metal concentration and duration.

在12 d的暴露过程中，镉或镍既可诱导日本虎斑猛水蚤MT的合成，也可表现为抑制效应，即MT的变化与暴露剂量和时间均有相关性。

The result showed NaOH was the reasonable agent for changing pH value of cornhusk hydrolysate, and cornhusk hydrolysate could be preserved in the below conditions: pH value is pH4.0 and the sugar concentration of corn hydrolysate was from 80g/L to 160 g/L, multicomponent hydrolysate could be deposited within 48 h at the room temperature (20℃) or the low temperature (4℃) and must be preserved within 48~120 hours at the low temperature (4℃) from harmful fermentation by microorganism.

通过温度、pH、梯度总糖浓度以及调pH试剂等因素对玉米皮水解糖液存放过程中总糖浓度变化趋势的影响进行深入研究，实验结果表明：选取NaOH作为调pH试剂比较经济，且选择在80~160g/L、pH4.0条件下存放可较好保存糖液品质，确定出在0~48h范围内可选择低温(4℃)至室温(20℃)条件下存放，而48~120h范围内只能选择低温存放(4℃)，室温条件下较长存放时间的糖液易被环境微生物发酵利用掉，为玉米皮水解糖液的短期存放提供一定的帮助。

Aim of the article was to provide a new approach of the fingerprint diagram research for TCM by means of spectrometry, which was capable of indicating the character of TCM. For the purpose of getting indication of NIRDRS convolution fingerprint diagram, the visualization technology was adopted to display the information which have been processed by convolution transform, then color-coded image was displayed in computer and the similarity coefficient was worked out between the fingerprint diagrams by cosine formula. Part one Theory and system design The spectrometry (UV/Vis, NIR, IR) is disadvantageous in the fingerprint analysis of complex systems both its difficulty of specificity and the similarity of TCM.

本文的研究目标是采用光谱手段，建立能够标示中药特性的指纹图谱技术，为中药指纹图谱研究提供新的思路和方法：通过采集中药的光谱信号，结合有"数学显微镜"美誉的小波变换技术，对光谱信号进行数据挖掘，捕捉和研究物质对光吸收特性的变化，大幅度增加可供利用的信息；同时运用科学计算可视化手段及伪彩色图像处理技术，得到基于虚拟直观计算机图像信息的中药光谱指纹图谱，并将该指纹图谱应用于药物的鉴别分析。

As one of the first manufacturers of bearing steel ring in China, the company is mainly engaged in such products as bearing steel ring for cotton spinning, nut, retaining ring, cotter pin, closing ring and flat pad etc.

经试验证明，"衰退钢领"内跑道的几何形态无显著变化，表面具备足够硬度，精抛光后（钢领可达到▽10-▽11级），上车使用效果非常好，可连续抛光使用能达到钢领使用寿命3-5年以上。

Rash, pustular psoriasis may also have changed. X ray showed that some patients with rheumatoid arthritis joint changes and the same may have a partial decalcification bone, joint cavity narrow, there are varying degrees of joint erosion and soft tissue swelling.

皮疹也可有脓疱型牛皮癣的改变。X线显示，部分病人关节的变化和类风湿型关节炎相同，骨质可有局部的脱钙，关节腔狭窄，有不同程度的关节侵蚀与软组织肿胀。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！