The analysis of thematic patterns and distribution shows that the two common patterns in forestry literature are marked theme and unmarked theme representing 52 7% and 44 1% respectively.
结果表明：标记性主位和非标记性主位是英文林业科技论文的主要主位形式， 分别占52-7 % 和44-1 % 。
The analysis of thematic patterns and distribution shows that the two common patterns in forestry literature are marked theme and unmarked theme representing 52 7% and 44 1% respectively.
结果表明：标记性主位和非标记性主位是英文林业科技论文的主要主位形式， 分别占52-7 % 和44-1 % 。
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