Cov ntaub ntawv yooj yim ntawm cov kua qaub thiab cov hauv paus
Cov kua qaub los yog cov hauv paus thiab ob hom kua qaub thiab cov hauv paus tuaj yeem tsim ua ib txhij lossis sib cais. Cov tshuaj no hu ua cov kua qaub thiab cov hauv paus, thiab cov kua qaub thiab cov hauv paus txhawb ntawm cov khib nyiab kuj tseem hu ua cov kua qaub thiab cov hauv paus. Lawv tuaj yeem siv tau ntau yam kev cuam tshuam catalytic.