对重熔区显微组织进行了研究，研究表明：激光重熔区分为熔凝区、过渡区及热影响区；
The result of microstructures analysis show: there are melted zone , transient zone and heat affected zone in the laser melted layer.
热影响区大部分保留了母材的原始组织特征，小部分区域发生了重熔。
Most of the heat affected zone retained original structure characteristics of the base metal, and only a fraction of the zone remelted.
试验结果表明：水洗及酸洗可使水稻秸秆的热解主反应区热重和微分热重曲线向高温侧移动，最大失重速率和最大失重温度升高；
The results showed that water and acid wash can make TG and DTG curves of rice straw pyrolysis shift to higher temperature section, and the maximum weight loss rate and temperature increased.
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