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OpenGL graphics technique, modeling of the ""sky dome"", MilkShape 3D creation method, principle of particle system are discussed. These techniques are used to construct sky background, fighter plane, trail and IR jamming respectively in the IR scene simulation system.

在进行红外视景图像仿真的研究工作中，文中讨论了OpenGL图形绘制技术、圆顶形天空的建模、MilkShape3D三维造型过程、粒子系统原理，用这些技术分别构建了红外视景中的天空背景、飞机目标、飞机尾焰和红外干扰弹。

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。

The buyers sometimes depend on the trade publishers themselves to determine which books to give a chance on the shelves, and despite the huge capacity of these stores, most titles in stock will be backlist or editions of older books, making competition for the remaining spots fierce indeed.

买方有时靠贸易出版社自己决定书，让有机会在货架上，虽然大容量储存，大部分种股票将改制版本或旧书籍，使比赛剩下的景点确实激烈。

These LED backlit keyboard is mainly used, as well as mobile phone LCD.

这些LED主要用于键盘背光，以及手机LCD。

Almost all 1080p projectors on the market these days have backlit remotes.

几乎所有市场上的1080这几天有背光遥控投影机。

Through the operation of the Government, to a certain extent to absorb the backlog of these houses.

通过政府的运作，将在一定程度上消化上述积压的房子。

Each of these connectors is wired to the PBX's backplane, also called a backplane bus.

这些连线都将连接到PBX背板上，也称为背板总线。

the backplate closes a part of the side ports so the effectiveness of these ports will be less.

backplate 关闭的一部分，一侧的港口，使这些措施的成效港口将会减少。

Supplied with tapped mounting holes in the backplate and four eye bolts, these suspended magnets can be rigidly mounted with threaded bolts or hung by eye bolts using cable or chain systems.

悬挂式磁板主要应用在带式传送机上，利用背面的四个螺纹固定孔和4个环首螺丝可以牢固的用绳子或者铁索悬挂在传送带上，或者用螺栓固定在机器上。

When you're starting a new company, however, these often take a backseat.

然而当你建立一个新公司的时候，这些都被抛诸脑后了。

Great. What repertoire did you see?

太棒了。你看的是什么剧目？

I prepared not to accept such ridiculousness:"Please," I said to him.

我可不想理会这套荒谬的东西："请你通情达理一点儿。"