变化系数

With the ray technique, the change of properties of electromagnetic wave when it thrilling through insulator are studied. Some useful engineering calculational formulae to evaluate the electromagnetic characteristics parameter of fiberglas laminates are fully listed.

运用电磁波射线追踪技术详细地研究了电磁波透过绝缘介质后的电磁特性变化情况，完整地给出了玻璃纤维或石英纤维层板和夹心结构电磁特性参数（电磁波透过系数、反射系数、插入相位移等）的工程计算方法。

We find that the youth dependency ratio has a weak and small significant impact on the household consumption, which is differenct from Life-Cycle Hyperthesis and existing literature's findings; while the old dependency ratio does not have a significant impact on household consumption.

我们发现，与生命周期假说的预言和现有文献结论不同，中国儿童抚养系数对居民消费具有负的影响，并且这种影响在数量上并不大；中国老年抚养系数变化对居民消费的影响并不显著。

The influence of chain extension coefficient on properties of PUU elastomer s modified by isocyanurate was studied.

考察了扩链系数对异氰脲酸酯改性的聚氨酯脲弹性体性能的影响，通过改变扩链系数探讨PUU的力学性能和耐溶剂性能的变化规律。

The changes of muscle protein content and pH values were observed. Results Thymus and spleen coefficients in high and low dosage group were 9.1±2.3, 6.3±1.1, respectively, and those of in the controll were 6.5±1.6, 3.4±0.5.The contents of muscle protein (g/100 g) in high, medium, and low dose groups were 24.68±0.55, 22.48±0.54, 21.22±1.25, respectively, lower than that of the control (31.83±2.36, P.05). Paramorphia of lymphocyte in high dose ciprofloxacin treated group was observed.

结果 对照组胸腺和脾脏系数分别为(9.1±2.3)，(6.3±1.1)mg/g，高剂量组胸腺和脾脏系数分别为(6.5±1.6)，(3.4±0.5)mg/g，与对照组比较，差异均有统计学意义（P.05或P.01）；而中、低剂量组的脾脏指数与对照组比较，差异均有统计学意义(P.05)；环丙沙星各剂量组与对照组比较，肌肉pH值变化不明显；环丙沙星高、中、低剂量肌肉蛋白质含量分别为(24.68±0.55)，(22.48±0.54)，(21.22±1.25)g/100 g，与对照组(31.83±2.36)g/100 g比较明显下降(P.05)；与对照组比较，高剂量组脾淋巴细胞形态异常。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

The coupled model is more sensitive to phytoplankton maximum growth rate, respiration rate, death rate and zooplankton grazing rate, while other parameters such as half saturation constants and remineralization rate are insensitive ones.

虽然，从表面上来看，模型对垂向扩散系数的敏感度不大，但由于目前的湍封闭模型，尚不能很好地刻画扩散系数复杂的时间变化，这势必对生态系统的模拟有着较强的不确定性。

Ice/ridge geometric parameters is established, and from computational analysis it is found that the unmonotonous variations of drag coefficient with ice concentration that frequently observed in sea ice field investigation mostly result from the influence of form drag from ice edge.

通过将原型条件下的冰-水总拖曳力考虑成表面摩拖曳力、冰侧形拖曳力和冰脊形拖曳力三部分，建立了冰-水总拖曳系数同海冰和冰脊几何形态参数之间的定量关系，并由计算分析发现现场观测到的拖曳系数随密集度的非单调变化就是冰侧形拖曳力分量作用的重要体现。

During the jackknife tests, either randomly deleting a certain amounts of compounds or specifically deleting a class of compounds, the jackknifed R〓 were distributed around the original R〓.

估算K〓和BCF的分子连接性指数模型稳健性良好，按随机抽除和类别抽除两种方式进行的jackknife检验中，模型可决系数变化不大，基本围绕在原始模型可决系数附近波动。

From the factors , together with the shoaling and friction coefficients , change of wave group intensity or wave height along .

据此因子连同浅水系数和摩擦系数就可求得波群的波动强度或波高沿波向线的变化。

Relative partial molar free energy of NaCl in the mixed solvent of water, ethyl alcohol and acetone were calculated.

应用电导法测定了在303 K时NaCl在混合溶剂中的活度系数，计算了NaCl在混合溶剂中的相对偏摩尔自由能，讨论了NaCl电解质溶液活度系数及其相对偏摩尔自由能随浓度的变化关系。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。