“urea herbicide”的概念、定义、翻译、参考文献-科学参考

单词	urea herbicide
释义	urea herbicide Encyclopedia 农学脲类除草剂释 urea herbicide脲类除草剂一类光合作用光系统PS Ⅱ电子传递抑制剂或细胞分裂抑制剂。结构式中R1一般为取代苯环或五六元杂环及稠合环，脂肪链组成的桥连环也可以，但以取代苯环居多；R2大多为氢；R3一般为短链的脂肪烷烃；R4一般为氢、短链的脂肪烃或烷氧基。
随便看	protection of ground buildings and structures protection of groundwater quality protection of groundwater quantity protection of intellectual property rights protection of juvenile protection of land rights protection of life protection of marriage and family protection of new varieties of plants protection of overvoltage protection of patent protection of privacy protection of steel structure protection of teacher's rights and interests protection of timber structure protection of wage claim protection of water source protection of women protection of women's rights and interests protection-oriented government function model protection planning of cultural relics and monuments in submerged and relocated area of Yangtze three gorges project protection range of water conservancy project protection recovery Protection Regulation of the Great Wall protection relay

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