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There were dead woods only in 14,22,42,54,70 cm diameter grade in Broad - leaved Korean Pine over - cutting forest.
阔叶红松过伐林内倒木大头直径仅在14,22,42,54,70cm径阶有倒木分布.
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径阶???又称 :径阶(diameter class )???
英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。