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- A dual-band step-zoom infrared optical system with four lenses is designed on the basis of the special properties of Harmonic Diffractive Element(HDE) and the zoom theory. 基于变焦系统的基本原理,利用谐衍射透镜的相关特性并结合中波红外和长波红外的特点,设计了仅含有4片透镜的红外双波段双焦光学系统。
- Design of Catadioptric Large Aperture Three Group Elements Infrared Zoom System[J]. 引用该论文 王鹏;赵文才;胡明勇;翁志成.
- Optical design for middle infrared zoom system 中波红外变焦距系统的光学设计
- Study of IR imaging target simulator based on zoom system 基于变焦系统的红外成像目标模拟器研究
- Design of target imaging zoom system for flight simulator 飞行模拟器目标显示变焦距系统设计
- Design of Catadioptric Large Aperture Three Group Elements Infrared Zoom System 折反式大口径三组元红外变焦距系统设计
- It is clear to all of us that two plus two is four. 二加二等于四对我们大家都很清楚。
- Design of a Short Focal-length Zoom System 短焦距变焦物镜设计
- He wove four plots together into a novel. 他把四条情节编成一部小说。
- We have tea at four o'clock in the afternoon. 我们在下午四点钟喝茶。
- The town boasts four swimming pools. 这座城镇以拥有四个游泳池而自豪。
- Our football team won by four goals to nil. 我们的足球队以四比零取胜。
- He lay back and hit the ball for four. 他向后弯身击中球,得了4分。
- I was clean broke in less than four days. 不到四天我就一个钱也没有了。
- I'll look out for you at about four. 我4点钟左右找你。
- He showed us four case studies of disturbed girls. 他给我们看了4位精神失常姑娘的病历。
- My house is four miles distance from the sea. 我家离海四英里。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- In all kinds of cameras, the focusing and zooming systems rely heavily on coil motors that move the lenses. 如各种相机产品,其对焦、变焦系统更是仰赖各类如线圈马达等致动器做为镜片移动的重要原件。
- The leap year comes around once in four years. 每四年有一个闰年。