accessorial area
附属的区域
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The results show that the average yield of bottom wetland grassland is the highest, with good quality but its area is about 0.5% of the total area, it can only be taken as accessorial grassland.
结果表明：该地区低湿地草甸草场单位面积产草量最高，牧草质量好，但仅占总土地面积的0 .5 %左右，只能作为辅助草场；
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