(3) 链转移反应： H + C2H6 → C2H5 + H2 (3-29) CH3 + C2H6 → C2H5 + CH4 (3-30) CH3 + e * → CH2 + H (3-31) CH2 + e * → CH + H (3-32) CH + e * → C + H (3-33) (4)
