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次生化学物质
释义
次生化学物质
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农学
次生化学物质
释
secondary chemical defense
次生化学物质
植物次生代谢产生的一类种类繁多、含量一般较少的有机化合物。又称次生代谢物。
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maintenance degree
maintenance dose
maintenance economy of aircraft equipment
maintenance engineering of aircraft materiel
maintenance equipment
maintenance facilities for concentrator equipment
maintenance factor
maintenance for long-life structures
maintenance for manufacturing systems
maintenance hangar
maintenance hook
maintenance level of aircraft
maintenance line
maintenance maintenance building
maintenance management of aircraft
maintenance management of aircraft materiel
maintenance management of aquatic plant
maintenance management of ground covers plants
maintenance of distribution equipment
maintenance of hydraulic metal structure
maintenance of hydraulic structures
maintenance of landfill after closure
maintenance of landscape appearance
maintenance of landscape facilities
maintenance of navigation structure
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