Costs of production have been substantially lowered for farm products by better application of chemical fertilizer, improved strains of seed and increasing mechanization.
由于使用更好的化肥、选育良种、机械化程度提高，农产品的生产成本已经大幅下降。
Costs of production have been substantially lowered for farm products by better application of chemical fertilizer, improved strains of seed and increasing mechanization.
由于使用更好的化肥、选育良种、机械化程度提高，农产品的生产成本已经大幅下降。
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