查询词典 concave lens

In order to obtain 266nm UV laser, we use a type-I phase match BBO crystal(θ=47.6°) pumped by the green laser above and a focus lens. the spectrum of 266nm UV laser is measured by a UV spectrometer. But we can not obtain the output power for absence of available spectroscopes.

在高功率、高重复频率绿光激光器的基础上，采用I 类相位匹配(θ=47.6°)的BBO 倍频晶体，实验中测得了266nm 激光光谱，但由于缺乏有效的分光措施无法测得输出功率。

I appraised the light, adjusted the lens setting and distance, locked a bulb in the flashgun

于是，我对好光，调好焦距，又安了一个闪光灯泡，然后举起像机，将这一场面在取景器中定格。

I appraise d the light, adjusted the lens setting and distance, locked a bulb in the flashgun, raised the camera and composed the scene in the viewfinder

于是，我对好光，调好焦距，又安了一个闪光灯泡，然后举起像机，将这一场面在取景器中定格。

I appraised the light, adjusted the lens setting and distance, locked a bulb in the flashgun, raised the camera and composed the scene in the viewfinder

于是，我对好光，调好焦距，又安了一个闪光灯泡，然后举起像机，将这一场面在取景器中定格。

I appraised the light, adjusted the lens setting and distance, locked a bulb in the flashgun, raised the camera and composed the scene in the viewfinder .

于是，我对好光，调好焦距，又安了一个闪光灯，然后举起相机，将这一场面在取景器中定格。

Garradd used a home made all-sky camera with a fisheye lens, resulting in a circular 200 degree field of view.

用上了特别的摄影镜头－鱼眼镜，全天360度现在也投影在一张相片上。

Patterns in Nature: Rainbows 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。

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

一个鱼眼镜头获得弧形的无比的亮度在加拿大的荒野。

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。

However, most historians argue that the accounts of millennial hysteria are the romantic concoctions of overly imaginative writers.

不过，大多数历史学家认为，帐目千年癔症是浪漫concoctions的过于富有想象力的作家。

CAROL:I must go to the greengrocer's.

我还得到蔬菜水果店去一下。