1. Cov tshuab ziab khaub ncaws zoo li no siv lub zog tsawg dua. Hauv txheej txheem ziab khaub ncaws, cov khoom nkag mus thiab tawm mus, thiab kev faib cov ntaub ntawv yog ntub thiab qhuav rau saum, thiab cov dej ntws ntawm cov ziab ziab kom qhuav yog qhov tsawg heev. Yog li ntawd, nws nyuaj rau cov khoom siv plua plav ntab mus rau saum cov khoom siv, thiab nws yuav tsis nqa los ntawm cov pa roj av, uas tsis tsuas yog tsis plam cov khoom, tab sis kuj yuav tsis ua paug rau ib puag ncig. Ib qho ntxiv, cov khoom siv txheej yog nyias thaum txheej txheej kom qhuav, qhov ntxaiv nrawm yog qhov tsawg, lub zog xav tau los ntawm cov khoom siv thauj khoom yog me me, thiab kev siv lub zog me me.
2, lub tshuab ziab khaub ncaws yog qhov yooj yim rau kev khiav lag luam, thiab lub sijhawm ziab kom qhuav yog luv. Thaum lub sijhawm txheej txheem ziab khaub ncaws, cov khoom siv yob rau pem hauv ntej raws Archimedes kauv txav mus los hauv cov phaj kom qhuav. Qhov deb ntawm cov khoom siv mus yog 5 npaug ntawm lub vojvoog ntawm cov phaj kom qhuav thiab ntog txheej los ntawm txheej. Yog li ntawd, cov khoom siv tiv tauj cov cua kub saum npoo rau tib lub sijhawm, thiab cov cua sov zoo ib yam.
3. Lub tshuab ziab khaub ncaws ua haujlwm ntawm kev kub ceev. Hom tshuab ziab khaub ncaws txuas ntxiv no siv cov cua sov hloov pauv kom qhuav. Thaum lub sijhawm txheej txheem ziab, tsuas yog cua me me dhau mus rau hauv lub tshuab ziab khaub ncaws, thiab nws cov pa tawm me me heev, yog li nws cov cua sov tuaj yeem ncav cuag ntau dua 65%.
