Results have shown that surface flammable substances in Yunnan pine forest totals 95. 043T/ha, of which arbor layer makes up 77. 414 T/ha, shrub layer 4. 165 T/ha, herb layer 0. 104 T/ha, and litter layer 12. 86 T/ha.是什么意思_Results have shown that surface flammable substances in Yunnan pine forest totals 95. 043T/ha, of which arbor layer makes up 77. 414 T/ha, shrub layer 4. 165 T/ha, herb layer 0. 104 T/ha, and litter layer 12. 86 T/ha.在线翻译_英语_读音_用法_例句