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苯甲酰吡唑酮类除草剂
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苯甲酰吡唑酮类除草剂
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苯甲酰吡唑酮类除草剂
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benzoylpyrazolone herbicides
苯甲酰吡唑酮类除草剂
一种对羟基苯基丙酮酸双氧化酶类抑制剂。结构通式中R部分为脂肪链;R1、R3为拉电子基团,如NO2、CF3、SO2Me、Cl等活性较好,当R3为强拉电子基团时,R1为甲基,也具有很好的活性;R2部分可为H、卤代烷氧烷基、或者含有氧、氮、酰胺等杂原子或基团的链状、环状取代基。
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urban sustainability
urban sustainable development
urban system
urban system function structure in the administration area of city
urban system planning
urban system planning in the administration area of city
Urban System Planning of the Zhujiang River Delta
urban system scale structure in the administration area of city
urban systems engineering
urban system spatial pattern in the administration area of city
urban system theory
urban thermal environment
urban topographic survey
urban traffic
urban traffic construction management system
urban traffic management platform
urban traffic management system
urban traffic system
urban traffic tunnel fire
urban transportation
urban transportation demand management
urban transportation development policy
urban transportation economy
urban transportation layout
urban transportation planning
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