单语范例（未经PONS编辑处理）
Optical effects were used to make the planes look as if they were entering the set.
en.wikipedia.org A particular host material is chosen in order to obtain a desired combination of optical, mechanical, and thermal properties.
en.wikipedia.org The eye's perception of "display resolution" can be affected by a number of factors see image resolution and optical resolution.
en.wikipedia.org The aim is optical with stadiametric rangefinder reticule.
en.wikipedia.org All electrical circuits generate waste heat; in addition, solar arrays act as optical and thermal as well as electrical collectors.
en.wikipedia.org