等偏性

In the paper, the principle and matrix description of the switch is expounded, and the aplanatism of signal lights is also testified, and the insert loss and polarization dependent loss is analysed.

本文将阐述光开关的原理与矩阵分析，论证这种自由空间光开关的等程性，讨论新型光开关结构与性能(插入损耗与偏振相关损耗)。

For some parametric estimation, whether it is the best estimation or not, its consistency, unbiasedness, effectiveness, invariance, and so on are often discussed. Then, it is compared with the data we get from experiment, and the deviation with the experimental data is considered.

某一参数估计是否是"最优"估计，通常要从一致性、无偏性、有效性、不变性等方面进行讨论，进而通过实际的观察对其进行数据拟合，分析其相对于实际模型的偏差程度。

Topics covered include, the properties of light and its interaction with mineral grains: reflection, refraction, polarisation, interference phenomena, extinction, colour and pleochroism. Refractometry inclusive isotropic, uniaxial and biaxial optics and the interpretation of interference figures. Transmitted light petrography in the identification and familiarisation with major rock forming minerals in grain mounts and thin section.

讲稿内容涉及到光学属性分析与矿物交叉面相互反应，具体内容有反射、折射、偏振、光干涉现象（包括等方性、单轴、二轴光学及干涉数据解释）、岩石记述学、矿物的光学属性鉴定等方面。

The degree of integration had positive relations with the degree of career development, however, the conflict ratio had negative relations with the degree of career development, and the degree of differentiation had inconsistent relations with the degree of career development; in study two, the Primitivity type held lower degree of career development and the Control type possessed higher degree of career development as predicted by the theory, while the other types were somewhat vague in between.

建构系统之统整性与生涯感受、生涯信念、生涯认识、思考广度与生涯计画等变项呈现出同方向的互动关系，而冲突性则与上述变项有反向的关系，分化性与生涯发展程度的关系则较不一致。质化资料分析结果亦显示出在生涯建构系统两极端之原初型与笃行型有较明显的生涯发展特徵，前者的发展程度偏低，后者则偏高，但处於两极端中间之慎思型与明辨型的生涯发展程度较为混淆不清。

Ten beans hundred herbs serosity﹡—a Chinese medicine herb soup, the main raw materials of which are beans and Chinese herbs, makes use of the partial role of beans.

十豆百草浆﹡——以豆类和中草药为主要原料配制成的中药汤剂，发挥豆类、豆衣、豆粉的偏性作用，能很好地解决中药的口味、毒性和损胃等副作用问题。

In the light of unbiasedness and validity of model, we identify the rigidity rotation model and rotation with strain model.

基于模型的无偏性、有效性等概念，对块体的刚性旋转运动模型、旋转应变模型进行了辨识，结果表明：同时考虑块体刚性旋转运动和应变的模型比单独考虑刚性旋转的模型更符合实际，模型的适用范围更广。

As a result, the statistic feature of measurement error becomes different,and the derived rheological parameter estimation tends to be no unbiasedness and with the least variance.

钻井液流变模式的参数估计问题大多使用线性回归方法求解，然而，线性回归方法改变了测量误差的统计特征，使得所得到的流变参数估计不具有无偏性和方差最小等特点。

In this paper,samples as a sensitive issue in two kinds of random survey answered model,from two angles of a large sample theory and a small sample theory respectively,the estimates obtained by the quantity of unbiasedness ,effectiveness,consistency of the strength of the areas of evaluation and assessment are to survey it is reasonable and effective.

以敏感问题调查中两种随机化回答模型为例，分别从小样本理论和大样本理论两个角度，对所得到的估计量进行无偏性、有效性、强弱相合性等方面的评估，从而评价此种统计调查方法的合理性和有效性，最后给出两种模型的实例分析。

In the part of estimation of parameters,there are many standards such as being agonic, compatibility and validity andso on.

有多种评价估计量优劣的准则，如无偏性、相合性和渐近正态性等。

Monte Carlo simulations were conducted to study the new approaches of QTL mapping, the results indicated that general least squares method, which was widely applied in mixed linear model, could unbiasedly estimate all genetic main effects, including additive effects, dominance effects and epistatic effects of additive by additive, additive by dominance, dominance by additive, dominance by dominance.

对新提出的QTL分析力法进行了Monte Carlo模拟研究，结果表明，广泛应用于混合线性模型的广义最小二乘法能够无偏估计加性效应，显性效应以及加加、加显、显加、显显上位性效应等各项遗传主效应；运用线性无偏预测法能够无偏预测上述各项遗传主效应与环境的互作效应；基于QTL效应的杂种优势预测也是无偏的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。