The image was taken in a vacuum at 3200 magnification .
这一图像是以3200放大率在真空中拍摄的。
Another is the trade off between a telescope 's field of view and its magnification .
另一个则是需要在天文望远镜的视场和放大率之间进行取舍。
One end has a clip for holding a sample slide , and different levels of magnification are possible .
一个中端有定格样本帧片的小装置,该装置可以调节任意放大率。
The amount of focal length that you desire will define how much magnification your lens needs .
你所想要的焦距长度将决定你要使用多大倍率的镜头。
The advantage that lenses gives us over pinhole cameras is twofold : brightness and magnification .
针孔照相机告诉我们凸透镜的作用:透光和控制倍率。
When viewing extended objects , the apparent brightness seen in the eyepiece is a function only of aperture and magnification , it is not related to focal ratio .
当观察扩展光源时,目镜中所看到的亮度只跟孔径和放大率有关,它跟焦比并没有关系。
While a larger aperture diameter might increase the brightness and sharpen the focus , increasing the lens magnification will increase the focal length and thus enlarge an image .
增大光圈直径可以增加亮度,并更好地聚焦,而增加镜头倍率能增加焦距,从而起到放大图像的作用。
Each usually comes with a diagram , marking the position of the tiny specks of carbon that can be seen when viewed through a " loupe " , the jeweller 's 10x magnification tool .
Three arms hold tools while the fourth is a camera that gives surgeons a view in a 3d visualization at up to 10 times magnification of what they are working on .
Ferns are a common example of a self-similar set , meaning that their pattern can be mathematically generated and reproduced at any magnification or reduction .