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1. The farmer used a defeathering machine to remove the grain from the wheat.
农民使用脱粒机将小麦中的谷物分离出来。
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2. The defeathering machine is essential for breaking down tough seeds before planting.
脱粒机在播种前对坚硬种子进行破碎是必要的。
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3. The defeathering machine has become increasingly popular in modern agriculture.
脱粒机在现代农业中越来越受欢迎。