Yuav ua li cas thiaj tswj tau thiab hloov cov ntaub nres
Feem ntau lub tsheb siv lub disc pem hauv ntej thiab lub nruas nres tom qab. Feem ntau, lub khau nres pem hauv ntej yuav puas sai thiab lub khau nres tom qab yuav siv tau ntev. Cov hauv qab no yuav tsum tau ua tib zoo saib xyuas thaum kuaj xyuas thiab txij nkawm txhua hnub:
Nyob rau hauv cov xwm txheej tsav tsheb ib txwm muaj, xyuas cov khau nres txhua 5000 km, tsis yog tsuas yog xyuas qhov tuab seem xwb, tab sis kuj xyuas qhov xwm txheej hnav ntawm cov khau, seb qhov degree hnav ntawm ob sab puas zoo ib yam, seb lawv puas tuaj yeem rov qab tau yooj yim, thiab lwm yam. Yog tias pom muaj cov xwm txheej tsis zoo, lawv yuav tsum tau kho tam sim ntawd.
Feem ntau, cov khau nres yog ua los ntawm cov hlau sab hauv thiab cov khoom siv sib txhuam. Tsis txhob hloov cov khau kom txog thaum cov khoom siv sib txhuam puas lawm. Piv txwv li, qhov tuab ntawm cov khau nres pem hauv ntej ntawm Jetta yog 14 hli, thaum qhov tuab txwv hloov yog 7 hli, suav nrog ntau dua 3 hli hlau sab hauv thiab ze li ntawm 4 hli sib txhuam. Qee lub tsheb muaj lub tswb ceeb toom khau nres. Thaum ncav cuag qhov txwv hnav, lub cuab yeej yuav ceeb toom thiab hais kom hloov cov khau. Cov khau uas tau ncav cuag qhov txwv kev pabcuam yuav tsum tau hloov. Txawm tias nws siv tau rau ib lub sijhawm, nws yuav txo qhov cuam tshuam ntawm kev nres thiab cuam tshuam rau kev nyab xeeb tsav tsheb.
