Notice the difference in the apparent distance of objects that each focal length produces.

注意每种焦距所产生的物体视距的差异。

youdao

A popular explanation is called the "apparent distance theory" : smaller objects, like trees and clouds, make the moon look larger.

一种广为接受的解释是“视距理论”，即树木和云彩等较小的物体使得月亮看起来更大。

youdao

Based on the revised apparent distance detecting equation, the affect of the frame accumulation to the detecting distance was studied.

分析了视距探测方程，提出了一种适用于慢运动目标的增大探测视距的方法——增加帧积分处理时间。

youdao

The difference in the apparent position of the cosmic masers lets astronomers measure their distance from the Earth.

VOA: special.2009.01.20

But others see his apparent distance from the still-powerful army as a handicap.

ECONOMIST: Change is bound to come, but when?

The Scottish Liberal Democrats, Labour's coalition partners in the Scottish Executive, appeared unperturbed by an apparent attempt by Mr McLeish to distance himself from them in the run-up to the general election.

BBC: McLeish: Election is important to Scotland

And Mr Prodi's apparent success in bringing Italy within shouting distance of the Maastricht test has numbed his right-wing opponents, most of whom approve of the government's euro ambition but have derided its efforts to achieve it.

ECONOMIST: Italy