- a kab (Peb lub dav hlau sib tshuam hauv ib kab tshwj xeeb.) -tsis muaj kev daws teeb meem (Peb lub dav hlau sib tshuam hauv peb kab tshwj xeeb.) -a kab (Ob lub dav hlau sib luag / sib npaug sib npaug thiab ib lub dav hlau tsis sib npaug.) - tsis muaj kev daws teeb meem (Ob lub dav hlau sib luag / tsis sib xws thiab ib lub dav hlau tsis sib luag sib tshuam hauv ob kab tshwj xeeb.)
Kev sib tshuam ntawm 3 lub dav hlau puas yog kab?
Txhua lub dav hlau txiav ob qho tib si hauv ib kab thiab lawv tsim ib qho chaw prismatic. … Lub dav hlau thib ob thiab thib peb yog sib xws thiab thawj zaug tau txiav lawv, yog li ntawd peb lub dav hlau hla hauv kab.
Peb lub dav hlau tuaj yeem hla ntawm ib kis yog vim li cas lossis vim li cas ho tsis?
Lawv tsis tuaj yeem hla ntawm ib qho taw tes vim tias dav hlau tsis kawg. Tsis tas li ntawd, lawv tsis tuaj yeem hla ntau dua ib kab vim tias cov dav hlau tiaj tus.
Yuav tau 3 lub dav hlau sib tshuam hauv 2 ntsiab lus?
1) peb lub dav hlau tuaj yeem ua ke. Thiab tsis sib tshuam kiag li. Yog tias ob lub dav hlau hla kev sib tshuam yuav yog ib txoj kab. 2) Ob lub dav hlau tuaj yeem ua ke thiab lub dav hlau thib peb sib tshuam txhua.
kev sib tshuam ntawm 3 lub dav hlau hu ua dab tsi?
tag nrho peb lub dav hlau tsim ib pawg ntawm cov dav hlau sib tshuam hauv ib kab (ib sheaf), tag nrho peb lub dav hlau tsim ib qho prism, peb lub dav hlau sib tshuam hauv ib qho chaw.
