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Book 1974s of a great economical value all over the world. The widespread application of these agents, however, is also accompanied by negative effects. The principal drawback of classical insecticides consists in the lack of their specificity, the useful insects being killed together with insect pests. Furt卵石 发表于 2025-3-22 02:33:23
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Brief Survey of the Neuroendocrine System in Insects, or transplantation on development. We have separated these effects from those of plant and animal extracts, other isolation products, or synthetic compounds, which will be described in the following chapters. The recent literature pertaining to insect hormones has been reviewed in several monographBARK 发表于 2025-3-22 08:49:58
The Chemistry and Physiology of Juvenoids,compass a wide range of mainly synthetic compounds with a relatively smaller amount of natural products isolated from plants and animals. The compounds have been characterized by certain size and shape of the molecule, low polarity, presence of specific functional groups and substituents, and by som缩短 发表于 2025-3-22 13:45:19
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e principles of design, and discusses design tools and techniques from traditional and multidisciplinary perspectives and comprehensively explores the design engineering process. Innovation, creativity, design thinking, collaboration, communication, problem solving, and technical skills are increasiMIRE 发表于 2025-3-22 22:05:16
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