The lake in the desert was just an optical illusion.

But the scene is actually an optical illusion.

而事实上,这样的场景只是一种光学错觉.

It's an optical illusion caused by the weak light.

这是由微弱光线引起的视错觉.

The canal on Mars is believed to be an optical illusion.

火星运河被认为是一种视觉错觉.

A mirage is an optical illusion.

海市蜃楼是一种视错觉.

An optical scanner can actually read characters and transfer to the monitor screen of a computer.

光学扫描仪能读出字符,并将其转换到电脑显示屏上.

She does not want to be taken to an optician with the probable result of having to wear glasses.

她不想被带去验光，因为结果可能是她必须配戴眼镜。

A dispensing optician supplies glasses, but doesn't test your eyes.

配镜师为你提供眼镜, 但不检查眼睛.

The optician moved the chart closer: " Now can you read it? "

验光师把视力表靠近 一点: “ 现在能认出来 吗 ? ”

This ability is lost with increasing age . The optician must adjust this dioptrically reading glasses.

随着年龄的增大这种能力会逐渐降低,所以需要眼镜协助眼睛进行屈光度调节.

A Do you know a good optician?

你知道好的眼镜商 吗 ?

to go to the optician's

去配眼镜

Hoping to get free contact lenses, Freddy goes to the optician.

弗瑞德到眼镜商那儿希望能得到免费的隐形眼镜.

The optician said I needed new glasses.

验光师说我需要配新眼镜.

She thinks Tom is myopic and should see a good optician.

她认为汤姆是近视眼的,应该去找个好眼镜商看看.

Some may need specialist treatment at the optician's.

有些人可能需要到眼镜店进行专业验光。

He finally realized that he was shortsighted and went to the optician.

他终于明白他眼睛近视了,于是去配了眼镜.

I want to go to the optician to buy glasses.

我要去眼镜店买一副眼镜.

Einstein's new theory on optics changed classical scientific ideas about light.

爱因斯坦新的光学理论改变了人们对光的传统科学概念.

Indeed, there is a very close analogy between optics and the description of particles.

诚然, 在光学和粒子的描述之间,有一种极为相近的类似.

This part of the subject is called physical optics.

这部分内容叫做物理光学.