This paper presents the way of the structure and analogy circuitry of a sound box working in inverse-phase type and the usages of the assistant soft for sound box in low frequency design.

1、

An Analysis of the Sealing Mechanism of a Soft Packed Stuffing Box Seal

软填料密封机理分析

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2、

The design, property adn applied effect is related further for example of soft lamp box materials.

并以柔性灯箱材料为例，对其设计研制、性能要求以及使用效果作了进一步的阐述和介绍。

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3、

The Optical Design for Micro-profile Zoom Endoscope

微形貌观测镜变焦系统的设计

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4、

Optical design of telescope zoom eyepieces

变倍目镜光学设计

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5、

The design results prove that the zoom system has high optical transmission, large zoom ratio, high resolution, small size and excellent image quality.

设计结果表明，该系统具有透过率高、变倍比大、分辨率高、体积小、像质高等优点。

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6、

Optical design of biological zoom microscope objective

生物显微镜变倍物镜的光学设计

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7、

A Common Used Computer Program for Gauss Optical Analyses of the Zoom System

用于变焦距系统高斯光学计算与分析的通用程序

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8、

This paper introduces a design of the optical system of zoom stereomicroscope, whose zoom range is from 1 × to 4 ×.

介绍了变倍范围在1×～4×的连续变倍体视显微镜的光学系统设计。

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9、

As an optical system, zoom lens can realize searching target in wide field, aiming and tracking in narrow field.

变焦镜头是一种可实现大视场目标搜索，小视场瞄准跟踪的光学系统。

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10、

The optical design of zoom stereomicroscope using optical compensation

光学补偿式连续变倍体视显微镜的光学设计

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11、

Establishment of Differential Equation for Optical Inverted Image Zoom and Its Application

光学转像变倍微分方程的建立及其应用

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12、

According to the theory of optical compensated zoom, author designed optical compensated step zoom lenses.

根据光学补偿变焦距理论，作者设计出光学补偿式步进变焦物镜。

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13、

Optical zoom range is 6 to 16 magnifications. Minimal distinguishable detail is about 2.5 μ m.

变焦范围6×～16×，分辨最小细节可达2.5μm左右。

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14、

A kind of assistant software for helping build and design optical zoom system with two moving groups lens was introduced.

介绍了一种2运动镜组元变焦距系统辅助光学设计软件。

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15、

Design of Infrared Optical Zoom Lens System Based on DSP

基于DSP的红外双视场调焦系统设计

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16、

Image Quality Evaluation Method for Holographic Stereo image Transferred from X-ray Image

X像转换为全息立体图像的像质评价方法

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17、

Reconstruction of X-ray Image with Super Dynamic Range by Wavelet Transform

基于小波变换的X射线图像超动态范围重建

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18、

Optimization for X-Ray Image Based on Approximated Point Spread Function

基于近似点扩展函数的X射线图像优化

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19、

A Study of the X-Ray Image Realtime Automatic Judgement System

X光图象实时自动评判系统的研制

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20、

Denoising Method to Dynamic Digital X-Ray Image Sequences and Its Fast Implementation

动态序列DR图像降噪算法及快速实现

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