Daim iav yog dab tsi?

- May 11, 2019-

Daim iav, daim iav English, yog ib qho dej. Keeb xeeb, cov ancients tau txi zoo li tooj liab thiab muaj lub peev xwm los qhia txog lub teeb. Muaj ob hom dav hlau tsom iav thiab iav tsom iav. Lub dav hlau tsom iav siv ntau zaus los ntawm cov neeg los npaj cov tsos. Cov iav tsom iav kuj raug muab faib ua cov iav thiab cov iav thawm iav. Lawv tsuas yog siv pleev tsom iav, rooj tog zaum fittings, vaj tse zoo nkauj, qhov chaw ntsuas qhov muag thiab hnub ci cookers. Tsom iav rau reflectors, telescopes reflection, tsheb iav, thiab lwm yam rau cov taws teeb thiab tsom teeb.


Hauv kev tshawb fawb, tsom iav los kuj siv feem ntau hauv cov twj paj nruag xws li telescopes, lasers, cov twj paj nruag, thiab lwm yam. Qhov chaw ntom nti hlau nrog cov khoom sib xws thiab cov iav los yog cov khoom siv hlau uas muaj hlau npuas coatings, feem ntau siv nrog hlau, yas los ntoo. Lub ciam teb.