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After certifying the irreality of ideal filtering function, we can get a better filter selecting a proper window function. Comparing two actual filters, we designate a good"Panama hat"filtering function. Meanwhile, an effectively linear interpolating function is introduced to raise the image reconstruction quality. Describing its realizing steps on the micro-computer briefly, we reconstructed some images from the anlogue projections of some models. The number of projection views is 180, 100 same interval parallel lines per view; the size of reconstructed images is 64×64 pixels with 64 gray levels; the reconstructing speeds are 40" on PC-386 and 12"on PC-486, respectively; each pixel is 0.31mm.

在证明了理想滤波器的不可实现性之后，得知通过选择适当的窗函数可获得很好的滤波函数，经过两个实际滤波器的效果对比，我们选取了较好的"巴拿马帽"形滤波函数，同时也介绍了一个有效的提高重建质量的线性内插函数，概要地叙述了平行射束图象重建的计算机具体实现步骤后，对几个物体的模拟投影数据进行了重建：投影角为180°，每视角下有100个平行投影数据点，在386微机上重建尺寸为64×64，时间约为40秒；在486/33MHz微机上只用了12秒，图象的象点精度是0.31mm。

The induced variation of anisotropy of the alloys on the process of isothermal annealing at 260—280℃ was measured in a rotating magnetic field with different speeds.

用磁转矩方法测定了在不同旋转速率的磁场作用下合金中感生磁各向异性在等温退火(260—280℃)过程中的变化。

Speeds so jauntily across the open country .I respct them; they are good

运的安排。他们就像街上的电车一样，在他们既定的轨道上行驶，而对于那些不时出没

They are like streetcars running contentedly on their rails and they despise the sprightly litter that dashes in and out of the traffic and speeds so jauntily across the open country.

他们就像街上的电车一样，在他们既定的轨道上行驶，而对于那些不时出没于车水马龙间和欢快地奔驰在旷野上的廉价小汽车却不屑一顾。

They are like streetcars running contentedly on their rails and they despise the motorcycle that dashes in and out of the traffic and speeds so jauntily across the open country.

他们就象街车，安分地在轨道上行走，他们看不起摩托车在车流里左冲右突，在开阔的乡村高速而行。

For example, jet airplanes are operating at higher and higher speeds, jet and conventional airplane engines are developing greater horsepower per pound, and pressure vessels and pipes are operating at higher pressures.

譬如， 喷气飞机飞得越来越快，喷气飞机和常规飞机发动机单位重量发出的功率越来越强大，高压容器与管道承受的压力愈来愈高。

For example, jet airplanes are operating at higherand higher speeds, jet and conventional airplane engines are developing greater horsepower per pound, and pressure vessels and pipes are operating at higher pressures.

譬如，喷气飞机飞得越来越快，喷气飞机和常规飞机发动机单位重量发出的功率越来越强大，高压容器与管道承受的压力愈来愈高。

CD-DVD Writer can write Data - Joliet/ ISO9660 discs and Audio discs in the fly, supports Burn-Proof technology with use of high write speeds, multisession disc, ISO files export and import.

光碟DVD烧录机可以写入数据-J oliet的/ i so9660光盘和音频光盘，在飞，支持烧伤P roof技术与使用高写入速度， m ultisession光盘，国际标准化组织的档案出口和进口。

In parallel, production efficiencies will continue to improve due to production speeds, economies of scale and just-in-time supply.

同时，生产效率将继续提高，由于生产速度，规模经济和公正的及时供应。

Usually Advanced Digital Network refers to speeds at or above 56 Kbps.

通常高级数字网络指速度为 56 Kbps 或更高速度的网络。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"