tòu
jìng

technical

Meaning of 凸透镜

凸透镜 means convex lens; converging lens (thicker at the center than at the edges, causing parallel light rays to converge at a focal point). Pronounced tū tòu jìng.

  • convex lens; converging lens (thicker at the center than at the edges, causing parallel light rays to converge at a focal point)

Definitions & Examples

ye
yòng
tòu
jìng
kàn
shū
 

Grandpa uses a convex lens to read books.

tòu
jìng
jiāo
yáng
guāng
 

A convex lens can focus sunlight.

Yuǎn
shì
yǎn
jìng
de
jìng
piàn
shì
tòu
jìng
 

The lenses of reading glasses are convex lenses.

Zhè
ge
wàng
yuǎn
jìng
shǐ使
yòng
le
tòu
jìng
āo
tòu
jìng
 

This telescope uses both convex and concave lenses.

Measure Words

/
Primary
/ piàn