可用

The impedance ratio and the meander could control the frequency of the second harmonic and the baseband ratio. According to that,we analyze several kinds of stepped impeedance resonator and use them to design the dual-band bandpass filters.In the thsis , The proposed bandpass filters and dual-band bandpass filters are designed for IEEE 802.11a/b wireless communicatuon system.

双频带带通滤波器是利用步阶阻抗谐振器之阻抗比与传输线之折线，可用来控制第二次谐波的频率与基频通带的比值，藉由改变阻抗比，来求得所要的第二次谐波，利用此特性，其中分析了几种不同形式的步阶阻抗谐振器，皆可用来设计双频带带通滤波器，带通滤波器与双频带带通滤波器是针对IEEE80211a与IEEE802.11b无线区域网路所设计。

In order to analyze the availability of mobile ad-hoc networks, a homogeneous continuous time Markov chain model was constructed and the probability of steady state was solved well through the model in normal condition, that is, the steady state is of availability.

为了能更好地分析移动自组网的可用性，构造了一个齐次的连续时间Markov链模型，并且通过该模型能够很好地求解系统在正常情况下稳态的概率，即稳态的可用性。

The flow stress increases with increasing the strain rate, and decreases with increasing the deforming temperature, which can be described by a constitutive equation in hyperbolic sine function with the hot deformation activation energy of 209.84 kJ/mol, and can also be described by a Zener-Hollomon parameter.

该合金热压缩变形的流变应力行为可用双曲正弦形式的本构方程来描述，也可用Zener-Hollomon参数来描述，其变形激活能为209.84 kJ/mol。

Schapery model can be used to calculate the CTE of composite when temperature is lower(50-100C) and Kerner model can be used when temperature is higher (300-450C). The CTE of composite will increased more quickly than that by three models when temperature is between(100-300C).

复合材料的热膨胀系数在温度较低(50～100℃)时可用Schapery模型计算，在高温(300～450℃)时可用Kerner模型计算，在100～300℃之间则随温度升高增加的很快，且与所有模型分析结果不一致。

With the decreasing labefaction of our environment, the useable fresh water is facing pollution and becoming exhausted in the large-scale, and shortage is a threat to the whole world as well.

但是，当今随着人类生态环境的日益恶化，世界可用淡水资源正在逐渐枯竭并普遍受到人为污染，全世界正面临着可用淡水资源短缺的威胁。

The manipulation of sugar can divide the curve of pink wine alcohol fermentation density with the changes of time into two parts when the sugar content of raw material-grape is lower than 12%. The regression analysis results showed that quadrative equation and logarithmic equation can be used to describe changes of density with changes of time before and after replenishing sugar respectively.

当葡萄原料含糖量低于12%酒度要求时，加糖操作可将桃红葡萄酒酒精发酵密度随时间变化的曲线分为2段，用回归分析法分析结果表明，加糖前密度随时间的变化规律可用二次方程描述，加糖后密度随时间的变化规律可用对数方程描述。

We study it, in order to understand the application of mathematical formula in physics and chemistry more deeply.

在物理学上，有许多重要的物理量间的关系如大气压强随高度的变化关系，分子松弛运动与时间的关系等，均可用指数关系式或对数关系式来表示；在化学中，特别是化学反应速度与温度的关系，化学平衡常数随温度的变化等，通常也可用指数关系式或对数关系式来表示。

Wording equivalence can be achieved by parallel analogy, for example, Archaism can be translated into Classical Chinese, slang into paronomasia, oral language into spoken language, academic language into corresponding style.

措辞可平行类比，如A rchaism可用文言来译；俚语可用俚语来译；口语体用口语体来译，掉书袋的学究体则用相应的文体来译。

The energy balance equations and exergy balance equations of heat exchanger and power equipment in the combined power cycle were established.Taking condensation temperature of Rankine cycle, inlet and outlet pressure of turbine of Rankine cycle, inlet and outlet pressures of turbine of LNG cycle as key parameters, the influences of these parameters on the thermal efficiency and exergy efficiency of the combined power cycle were analyzed.

建立了混合动力循环中换热和动力设备的能量平衡方程和可用能平衡方程，并以朗肯循环冷凝温度、朗肯循环透平进出口压力、液化天然气循环透平进出口压力为关键参数，分析了上述关键参数对混合动力循环热效率和可用能效率的影响。

The energy balance equations and exergy balance equations of beat exchanger and power equipment in the combined power cycle were established. Taking condensation temperature of Rankine cycle, inlet and outlet pressure of turbine of Rankine cycle, inlet and outlet pressures of turbine of LNG cycle as key parameters, the influences of these parameters on the thermal efficiency and exergy efficiency of the combined power cycle were analyzed.

建立了混合动力循环中换热和动力设备的能量平衡方程和可用能平衡方程，并以朗肯循环冷凝温度、朗肯循环透平进出口压力、液化天然气循环透平进出口压力为关键参数，分析了上述关键参数对混合动力循环热效率和可用能效率的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。