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commercial fertilizer造句

"commercial fertilizer"是什么意思   

例句与造句

  1. Along several streams in alaska , we have calculated that the total amount of nitrogen and phosphorus provided by the carcasses equals or exceeds recommended concentrations of commercial fertilizer for similar plants in northern forests
    沿著阿拉斯加的几条溪边,我们计算了鲑鱼尸体所提供的氮、磷总量,等于甚至超过商业肥料对北部森林同种植物的建议浓度。
  2. For purposes of illustration , i have stressed the importance of post - harvest activities , but i might just as easily have written instead on pre - production activities such as the development of commercial fertilizers , whether natural or synthetic , and their acquisition by farmers , as well as innovations in seed and animal breeding , including most recently , of course , the development and employment of genetically modified organisms gmos
    为了证明这一方法的必要,我举证了季后活动的重要性。我当然也可以毫无困难地举证耕前活动:例如商业肥料的发展、无论是自然肥料还是合成肥料;农民们取得肥料的途径;种子和动物培育方面的发明;还有近来的基因改造生物体的发展与运用。
  3. It's difficult to find commercial fertilizer in a sentence. 用commercial fertilizer造句挺难的

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