背景反射

Firstly, the experimental background and the central conception of Andreev reflection are reviewed.

文中首先阐述了介观复合体系的实验背景及输运问题中的核心概念——Andreev反射。

It consists of the folowing five contents.(1) the seasonal change of leaf area index,(2) the seasonal change of ratio of leaf area, stem area and ear area to the sum area of these three foliage components,(3 )the seasonal change of leaf in clination,(4 )the seasonal change of optics of leaf, stemand ear,(5 )the seasonal change of upward reflectance of soil background.

具体内容包括：(1)叶面积指数的季相变化；(2)叶、茎、穆面积在它们总面积中比例的季相变化；(3)叶倾角分布的季相变化：(4)叶茎称光学特性的季相变化(5)土坡背景垂直向上反射率的季相变化，文中各项季相变化特征祖盖的冬小麦生育期长。

Minimize unwanted reflectance; the background should be plain white or off-white.

背景– 拍摄物背后的区域；必须平坦、无图案，将不必要的反射率降

Bottom simulating reflector ; Miniature temperature probe ; Gas Hydrate ; Temperature gradient ; Cylindrical temperature decay function

指导教授徐春田；中文关键字仿拟反射层；小型温度探针；天然气水合物；背景温度梯度；圆柱体温度衰减函数

Based on the simulated data produced by PROSAIL model and field test data, the authors respectively analyzed many kinds of factors which affect some representative inversion method s, such as VI, second derivative, model inversion and the directional second derivative.

以PROSAIL模型模拟数据和地面实测数据为基础，分别分析了土壤背景、冠层反射率非各向同性以及随机噪声等因素对几类代表性反演方法的影响(植被指数法、二阶微分法、模型反演法以及方向性二阶微分法)。

The developing process about establish the model of earth surface and several classical methods, which are the methods of radiative transfer, geometric optics, hybrids of two or more of these, and numerical simulation are discussed in detail.

较详细地论述了建立地物散射模型的发展情况和几种典型方法：辐射传输方法、几何光学方法、复合模型方法以及数值模拟方法等，初步研究了适用于植被、土壤、沙漠等环境背景的双向反射分布函数模型。

It appears as a faint bluish haze right of center against a background of stars in the loosely grouped Alpha Persei Moving Cluster .

在这幅图上，分离的彗尾创造出一个反射星云的幻象——在图片中央靠右处，一层蓝色的朦胧薄雾缭绕在英仙座阿尔法移动星团构成的疏散恒星背景之间。

In this image, the separated tail creates the illusion of a reflection nebula. It appears as a faint bluish haze right of center against a background of stars in the loosely grouped Alpha Persei Moving Cluster.

在该照片里，彗尾产生了一个反射星云的效果：即在背景星空衬托下，该彗尾在照片中间偏右疏散星团的地方出显出淡淡的蓝色云雾状。

Measurement of laser proximity fuze target reflective characteristic includes the measurement of target and background characteristic of space and time.

激光近炸引信目标特性测试包括目标与背景激光反射的空间特性和时间特性测试。

We investigate this data and derive the following rules to process tunnel refection seismic data: Based on their different particle trajectories and propagation speeds and shear waves need to be separated from tunnel waves, air waves, and background noise.

通过研究这些数据，得出如下一些处理隧道反射地震数据的规则：根据不同的质点运动轨迹和传播速度把压缩波和剪切波与隧道波、空气波和背景噪音分离开来。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。