查询词典 constant value

A deflator calculated by dividing, for each year of the period, the value of GDP in current market prices by the value of GDP in constant market prices, both in national currency.

该缩减指数的计算方法是用一定时期内各年度按现行市场价格计算的国内生产总值除以按不变价格计算的国内生产总值。

At about 0.8 um, the dielectric constant of Bao.esSro.ssTiO3 ceramic at ambient temperature displays a maximum value, and the diffuseness parameter displays aminimum value.

实验研究了不同晶粒尺寸条件下TiO_3陶瓷的介电特性。

In the single crystal of C60 with a FCC structure,positron mainly appears outside the C60 molecule.The main annihilation space is the interspace between molecules.The calculated positron bulk lifetime in C60 is 352ps, which agrees with experiment value of 356ps in literature.In carbon nanotube bundles with different dimeters,as the diameter of carbon nanotubes increases,the main space where positron appears changes from the interspace of carbon tubes to the space inside carbon tubes,the radio between positron annihilation with valence eletrons and core eletrons becomes larger,the positron bulk lifetime in carbon nanotube increase rapidly first and come to be a constant at the end.The calculated positron lifetime of carbon nanotube with a dimeter of 0.8～1.6ns is 332～470ps,which agrees with the experiment value of 394ps.Positron annihilation has been studied in widly used compound semiconductors.

计算结果表明：在片层结构的石墨晶体中，正电子主要在石墨层间的空隙中湮没，计算出的石墨中的正电子寿命为208 pS，与文献中的实验结果215 ps符合很好；在金刚石单晶中，正电子主要在碳原子之间的空隙中存在并发生湮没，计算出的金刚石中的正电子寿命为115 ps，文献中的实验结果110 ps左右符合；在面心立方结构的C60晶体中，正电子主要在C60分子球壳内外侧及分子之间存在，C60球形分子中心正电子分布很少，正电子的湮没区域集中在C60分子之间的空隙区域，计算出的C60中的正电子寿命为352 ps与文献中的实验结果356ps相符合；对于不同管径碳米管束中的正电子分布，随着碳纳米管直径的增加，碳纳米管束中的正电子由主要在碳纳米管管间的区域出现转变为主要在碳纳米管管内中心的区域出现：碳纳米管束中的正电子与碳原子的价电子的湮没概率变得越来越大，与核心电子的湮没概率变得越来越小；碳纳米管束中正电子的湮没寿命先迅速增大，而后趋于一定值。

The value of the binding equilibrium constant obtained here was in reasonable agreement with the reference value.

得到的结合平衡常数与文献值合理地一致。

The non-reference-signal's adaptive digital filter algorithm of multi-sensor data fusion in the course of adaptive filter can be done without reference signals. It can adjust convergence constant automatically, it can also be recurred with real gradient value. Thus the field to apply the adaptive filter is widened, the convergence speed of the adaptive filter is sped up, the weighted disadjustmend is decreased, so that the last error of mean square approaches its minimum value more.

这章研究的基于多传感器数据融合无参考信号的自适应数字滤波算法其在自适应滤波过程中具有不用参考信号与自动调整收敛因子及使用实际梯度值进行递推的特点，这样不仅可扩大自适应滤波的使用范围，而且还使自适应滤波的收敛速度加快有效地减小权失调，从而使最后的均方误差更接近于其最小值。

This instrument used the parallel p late capacitor to measure relative dielectric constant of film, which equaled to the ratio of the capacity value full of film and the capacity value full of air. It app lied the equipotential ring technology to reduce the error caused by edge effect in the two p late edges, and greatly increased the measurement p recision and accuracy.

该仪器采用将平行板电容器充满薄膜的电容值与充满空气的电容值相比的方法得出薄膜的相对介电常数，并采用等位环技术，减小了两极板在边缘处产生边缘效应所带来的误差，大大提高了测量的精度和准确性。

The thermoinduced coloration system of fluorane/iodonium salt has been investigated. The kinatic studies of thermoinduced color development reaction in polymer film was performed. It was found that two different phenomena appeared in the relationship between reaction rate constant and temperature. A very low value of k〓(0〓mol〓·l·s〓) and very high energy of activation E〓(149 KJ·mol〓) observed in the region of low temperature, whereas a larger value of k〓(1~10 mol〓·1·s〓) and smaller energy of activation (E〓33 KJ·mol〓) displayed in the region of high temperature of 150℃.

研究了荧烷/碘鎓盐热致显色反应体系，进行了分子膜中热生色反应动力学的研究，发现热生色速度常数k〓和温度关系呈现二种不同情况：在低温区，k〓值很小（＜10〓mol·1·s），活化能很大（E〓=149KJ·mol〓）；而在高温区，k〓值较大（1~10〓mol·1·s），活化能较低（E〓=33KJ·mol〓），它们的转折点位于温度（T〓=119℃），表明高于T〓是进行热致显色反应的重要条件；考虑到它们用作热记录介质的可能，研究了熔融状态中热生色反应。

Of value judgment and in the aspect of concrete ethical norms, thoughts of modern nationality transformation embodied the modern transformation from the three cardinal guides and the five constant virtues as specified in the feudal ethical code to the bourgoise morality of independence, freedomand equality,and finally to the socialist code of unity, mutual aid and coorperation, and furnished the concrete standards of conduct.On one hand, on the basis of modern transformation of social tendency of value judgement and moral norm, China modern bourgeois thinkers broke the feudal shackles in people's mind by attacking fierely such backward psychology as back to ancient , conservatism, passivity, nonaction, closing the country

在社会价值取向和道德规范近代转换的基础上，主张国民性改造的近代资产阶级思想家猛烈批判了复古、保守、消极萎缩、无为不争、闭关自守、虚矫伪饰以及被动依附的落后心理，打破了人们心灵的封建枷锁；另一方面，他们又通过多种方式大力弘扬重今、创新、竞争奋进、开放、务实、自主等近代社会心理，把个人主义、社会主义的价值原则和自由、平等、独立的近代道德规范转化为人们的心理自觉，为实现人们行为方式的近代转型打下了扎实的基础。

If the content of SiH〓 kept constant, the laser energy value of threshold that decomposed SiH〓 increased linearly at first, but when the gas flux exceeded 100ml/min, the laser energy value of threshold increased slowly because the coaxial Ar could not"suppress"the reaction flame which leaded to radial dilation of reaction gases and increasing the effective absorption to laser energy.

在反应气体中SiH〓含量不变的情况下，随着反应气体流量的逐渐增加，可以引发硅烷分解的激光能量阈值一开始成线性增加，当流量大于100ml/min以后，由于同轴Ar不能有效的&压住&反应焰，导致反应气体的径向扩张，增加了对激光能量的有效吸收面积，因此激光能量阈值的增加减缓。

The results show that:(1)the low-noise source-follower circuit can be effectively used to measure the output of PVDF thin film;(2)the piezoelectric coefficient D33 of the PVDF is very sensitive on temperatures;(3)the value of D33 intensively fluctuate in initial loading stage,this means that a pre-load is needed in practice application to keep a constant piezoelectric coefficient D33 of the PVDF;(4)when the compressive load is imposed on the surface of the PVDF along a incline direction,D33 value is obvious changed with changing incline angle,and(5)the frequency bandwidth of the PVDF thin film is very wide,it is more suitable to measure strike or impact loading at various loading conditions.

结果表明：(1)低噪声源跟随电路可有效测量PVDF 薄膜输出；(2)PVDF压电薄膜的压电系数D33对温度很敏感；(3)D33值在加载初始阶段波动很大，所以实际应用中应给PVDF提供一个预压载荷，以确保有一恒定的压电系数D33；(4)当压载荷沿倾斜方向作用在PVDF 表面时，由于有剪切力作用，D33 值会随着倾斜角的变化发生显著改变；(5)PVDF 薄膜具有很宽的频响，更适用于测定不同载荷条件下的侵彻或冲击等动态载荷。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。