field glasses

The field glasses adjust with a screw . Most flashlights work on two batteries .

双筒望远镜是用一个旋钮调节焦距的。大多数的手电筒用两节电池。

When it comes to grand scientific gestures-and the cash that goes therewith-those who wield field glasses and butterfly nets in the name of terrestrial ecology seldom get a look in .

当涉及宏大的科学排场和这些排场涉及的金钱时，那些使用双筒望远镜和捕蝶网的地球生态学者很少有机会参与其中。

Can you train your field glasses on the distant church tower ?

你能把望远镜对向远方的教堂吗？

Binoculars or field glasses are a great help when we want to see what birds are doing .

当我们想要看鸟正在干什么的时候，双筒望远镜或野外望远镜用处很大。

Even a careless momentary look through the eyepiece of field glasses or the telescope can do great harm to the eyes .

通过望远镜或双筒望远镜的目镜，即使对太阳只是漫不经心的一瞥，也会对眼睛造成严重的伤害。