他说“收割者”能飞得更快，更高，能够挂载更多的武器，总体性能要比“捕食者”强的多。
He said the Reaper flies faster and higher, carries more weapons and has better overall capabilities than the Predator.
在以往的研究中，主要是以养分平衡方法来开展对玉米施肥方面的研究，并多停留在理论与机理上的探讨，缺乏具体性、时效性与系统性的研究，没有更多地将新技术、新方法应用到研究中去。
The nutrient balance method was mainly researched on maize fertilizer in the old researches, and most of them stay the level of theory and mechanism without concrete, timely and system research.
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