Cov khoom nyom ntawm kub pob muaj qhov hloov maj mam hloov raws li kev xaiv ntawm kev sib koom ua si football hauv xyoo tas los. Qhov tseeb, thaum ntxov li xyoo 1980s, cov ntaub ntawv thoob ntiaj teb tau tshaj tawm txog kev ua kis las, thiab peb tuaj yeem pom cov txiaj ntsig zoo ntawm cov khoom nyom.
1. Lub tshav ncaws pob yog qhov yooj yim rau nruab thiab tsis yooj yim. Nws tuaj yeem ntsia tau rau ntawm qhov chaw tsis muaj kev ntshai ntawm delamination.
2. Qhov khoom neeg ua si ntawm football teb yog ib qho yooj yim los tuav. Nws ntxuav tau yooj yim los ntawm kev ntxuav.
3. Cov khoom nyom ntawm kev ua si ntawm football yeej tsis tuaj yeem siv rov qab, tab sis kuj rov qab siv dua. Cov xuab zeb siv nyob rau hauv kev tsim kho yuav siv cov xuab zeb sab laug dhau ntawm thawj qhov chaw qub, uas yog ib puag ncig zoo thiab yuav tsum tau them tsawg.
4. Lub casses dag ntawm kev ua si ntawm football yuav pab kom muaj kev ywj pheej kom txaus kom txo tau cov kev cuam tshuam ntawm cov neeg ncaws pob taw. Txawm tias cov kis las poob los, cov khoom nyom tuaj yeem tiv thaiv cov neeg ua si ntawm kev noj qab haus huv thiab kev nyab xeeb.
5. Cov nyom ntawm kub teb khoom neeg tsim nyom tsis yog tsuas zoo nkaus li cov nyom hauv av, tab sis kuj ua raws li cov nyom hauv kev nplij siab.
6. Kev ua si ntawm football ncaws pob yog qhov ntev thiab zoo nkauj, tsis yog siv tau txhua lub sijhawm xwb, tab sis kuj tuaj yeem teem caij tau txhua lub sijhawm, muab kev pom zoo, thiab tswj kom ntev.
7. Qhov zoo ntawm daim teb football dag cig yog qhov yooj yim kom paub qhov txawv, qhov nqi tsim khoom tsawg tsawg, cov khoom siv tes ua yoojyim, txuag lub sijhawm thiab kev siv zog, tsis xav tau tus neeg muaj peev xwm tshwj xeeb kuj tseem paub qhov zoo ntawm qhov phem.
8. Kev ncaws pob ntawm cov khoom kub nyom muaj nplaim hluav taws kub, siab elasticity, luv nqi thiab tsis tshua muaj kev ua haujlwm.
9. Thaum lub casses dag ntawm football teb tiav lawm, nws tsis tuaj yeem txo qhov kev poob siab, tab sis kuj txo qis qis thiab txo qhov kev cuam tshuam rau qhov chaw ib puag ncig.
10. Cov tiaj nyom football yog huv thiab yooj yim los ntxuav. Nws yog los ntawm huv quartz xuab zeb.
Kev kub nyom kub nyhiab tuaj yeem ua tau raws li kev ua si txhua hnub ntawm feem ntau tus neeg ncaws pob, thiab nws tsis muaj kev txwv los ntawm qhov chaw xws li tej yam ntuj tso lawn. Nws tau dav siv nyob rau hauv lub ntiaj teb, thiab txawv lawns yuav tsum tau xaiv raws li kev xav tau sib txawv.
