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A fisheye lens captures the desolate gray of a volcanic plain on Russia's Kamchatka Peninsula.

这是鱼眼镜头里的的堪察加半岛。

A fisheye lens captures arcs of light crowning the Canadian wilderness.

一个鱼眼镜头，捕捉光弧最高的加拿大荒野。

Caption :The creative snapper uses an old Soviet fisheye lens from Belarus to give these images a unique perspective.

描述：这张照片利用的是老的苏联鱼眼镜头，来自白俄罗斯，给这些图像以独特视角。

A fisheye lens captures arcs of light crowning the Canadian wilderness.

一个鱼眼镜头，获得光弧无比的加拿大的荒野。

A fisheye lens captures the desolate gray of a volcanic plain on Russia's Kamchatka Peninsula.

这是在俄罗斯的堪察加半岛，通过鱼眼镜头抓拍到的灰蒙蒙的火山岩平原。

This Fisheye Lens Attachment attaches via the 52mm Filter Tube Adapter available separately and exclusively from WestCoastCameras.

这种鱼眼镜头附件重视通过过滤管52毫米适配器可以单独和完全由WestCoastCameras。

A fisheye lens captures arcs of light crowning the Canadian wilderness.

使用鱼眼镜头能捕捉弓形光线在加拿大的荒野外高空。

The system consists of an omni-directional camera based on fisheye lens and an embedded image processing unit, and it can, recognize and track man-made landmarks robustly based on composite Particle Filter, and realize robot navigation finally.

系统由基于鱼眼镜头的全方位视觉传感器和嵌入式图像处理单元构成，可以实时校正鱼眼镜头畸变，并利用复合的粒子滤波算法识别和跟踪自定义的航标，最终实现移动机器人的导航。

A fisheye lens captures arcs of light crowning the Canadian wilderness.

用一种fisheye(编者注：这是新型广角180视野的镜头)镜头捕捉到弓形的居高的光线在加拿大的荒野上。

The All Sky camera incorporates the Smart Guider Camera inside an aluminum enclosure with an acrylic dome to protect the fisheye lens.

进口工业网的全天候相机将Smart Guider相机放置在一个铝合金外壳圆顶内，以保护鱼眼镜头。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。