查询词典 Fresnel lens

This paper presented an optical system of star sensor. The lens system was a complicated double- Gauss configuration which had an effective focal length of 51 mm, an F-number of F/1.1, a field of view of 21°×21°(2ω=30°),and a working wavelength rang of 0.5~0.85 μm.

介绍了一种用于卫星姿态控制的星敏感器光学系统，该光学系统焦距为51 mm，相对孔径为1/1.1，视场角为21°×21°（圆视场2ω＝30°），光谱范围为0.5～0.85 μm，采用了复杂化双高斯结构。

Use zoom-in function in live-view mode while the lens has been stopped down to the designated f-stop.

当使用特定的镜头光圈值时，在实时取景拍摄时，使用放大功能对焦。

Since I do a lot of "general use" I have no complaints aside from the wishful thinking of a magic lens adapter that reduces to image circle to my *Ist while improving the F-stop an giving it the same angle of view of the 24-90 on 35mm.

因为我只是做一般用途，我没什么其他的抱怨，除了想要一个镜头转接环，用来减小它的成像圈，这样当我改进了F-stop 后在我的*ist上能得到和24-90mm一样的视角。

Closing the shutter reduces the exposure, allowing high-speed film to be used outdoors or allowing the lens to be opened to decrease depth of field or shooting at a selected f-stop.

关掉快门会减少曝光，这样可以用与户外高速摄影或用于打开镜头减少景深或用于有选择的设。

Adopt imported reflect mirror and lens from America, makes the facula thinner and the cut stronger.

采用美国进口反射镜和透镜，光斑更细、切割力更强。

Adopt imported reflect mirror and lens from America makes the facula thinner and the cut stronger.

四、采用美国进口反射镜和透镜，光斑更细、切割力更强。

Such as false tooth, false hair, contact lens, earring, ring, watch and etc.

比如：假牙，假发，隐形眼镜，耳环，戒指，手表等物。

Such as false tooth,false hair,contact lens,earring,ring,watch and etc.

比如假牙、假发、隐形眼镜、耳环、戒指等物。

The patient takes lens of groovy stomach bowel to check a position, clean oral cavity, the person that have false tooth gets off mobile false tooth, establish vein infusion channel.

患者取常规胃肠镜检查体位，清洁口腔，有义齿者取下活动义齿，建立静脉输液通道。

Ferrochromium soldering :power keep no more than 40W,tip temperature should not pass 280 oC,soldering time within 3 second, welding position and lens should keep 1.6mm distance at least

铬铁焊接时铬铁功率不要超过40W，尖端温度不要超过280 oC，焊接时间不要超过3秒，焊接位置最少与胶体保持1.6mm距离。

It is suggested that TDS can be used as a new method for the analysis of pedogenesis and climatic change.

总之，热处理过程中磁化率的变化能非常灵敏地反映磁性矿物的转化情况，而且，这种转化往往与样品所经历的土壤化作用强度密切相关，因此，TDS可做为分析成土作用强度和古气候变化的一种新方法。

Therefore, in this chapter, I will research into the conflict and contradiction of the paternity. Also, in this novel, the father's behavior of "He who loves well chastises well." is quite suspicious, one of the reasons is that the father thought his son belonged to him. And then, this thesis quoted Lacan's theory to touch upon that someone who has accepted the concept of patriarchal society, he will be influenced for his whole life. That also reveals that human being has no choice sometimes in this society.

因此本章会先就父子关系的冲突与矛盾做深入的探讨，小说中的父亲似有对儿子爱之深责之切的行为，其原因可能在於父亲将儿子视为所有物所致；其次，论文将引用拉冈相关理论，讨论在父权社会中，不论身分为何，只要是已受父权社会观念根深蒂固影响的人物，终生都将受其所苦，此也揭示出人生存於社会上的无奈。