碱液浓度和时间的增加使试样的残胶率和木质素含量降低，但降低的速度逐渐变慢；
The density and the time of alkali treating decrease the proportion of remnant pectin and the content of lignin, but the speed of the decreasing becomes slower gradually;
碱液浓度和时间的增加使试样的残胶率和木质素含量降低，但降低的速度逐渐变慢；
The density and the time of alkali treating decrease the proportion of remnant pectin and the content of lignin, but the speed of the decreasing becomes slower gradually;
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