焦距

jiāo jù méi duì zhǔn

焦距没对准

focal length not calibrated

tiáo jié jiāo jù

调节焦距

focalize

cè jiāo jù

测焦距

take the focus

jìn shì yǎn de jiāo jù bǐ zhèng cháng yǎn jing de yào gèng duǎn

近视眼的焦距比正常眼睛的要更短。

A near-sighted eye has a shorter focus than a normal eye.

zhè fù shuāng tǒng wàng yuǎn jìng de jiāo jù bù tài duì

这副双筒望远镜的焦距不太对。

The binoculars were not in focus.

tā ná qǐ shuāng tǒng wàng yuǎn jìng tiáo zhěng jiāo jù

他拿起双筒望远镜，调整焦距。

He raised his binoculars and adjusted the focus.