yield of lean cuts

例句：

1. 1. The yield of the crop is disappointing.
   作物的产量令人失望。
2. 2. The farmers are anxious to know the yield of their crops.
   农民们急切想知道作物的产量。
3. 3. The yield of the new technology has been impressive.
   新技术的产量令人印象深刻。