The external force feed test indicated that the frequency of seed amount in frame is independent of shooting frequency.
研究表明，帧种子数分布相对于拍摄频率（帧频率）具有独立性。
In compare with the external force feed type, the uniformity of dropping may be increased by 10-30% when sowing wheat, sorghum, millet and corn.
它和外槽轮式排种器相比，在播种小麦、高粱、谷子和玉米时，其排种均匀性提高10 ~ 30%左右。
In compare with the external force feed type, the uniformity of dropping may be increased by 10-30% when sowing wheat, sorghum, millet and corn.
它和外槽轮式排种器相比，在播种小麦、高粱、谷子和玉米时，其排种均匀性提高10 ~ 30%左右。
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