Cov qhov rooj hluav taws kub hlau yog ua los ntawm cov hlau zoo thiab muaj cov khoom siv hluav taws kub-resistant, thiab yeej ib txwm nyob rau hauv pem hauv ntej ntawm kev lag luam. Qee qhov chaw pej xeem thiab cov khw loj loj siv lub qhov rooj hluav taws kub.

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