Nws ntseeg tau tias kev nyab xeeb kev ua tau zoo yog qhov teeb meem kev txhawj xeeb tshaj plaws ntawm cov pej xeem, cov iav zoo tib yam nyob rau hauv cov ntaub ntawv ntawm rupture yuav ua rau tej yam kev puas tsuaj rau tib neeg lub cev. Cov iav hluav taws kub zoo tseem yog obtuse tom qab tawg, thiab cov khoom tawg yog me dua li cov iav tawg.

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