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硝酸磷肥
释义
硝酸磷肥
Encyclopedia
工学
复合肥料
释
nitrophosphate
硝酸磷肥
用硝酸分解磷矿制得的氮磷(钾)复合肥料。产品主要成分为硝酸铵、磷酸铵和磷酸钙盐。硝酸磷肥的主要特点是硝酸分解磷矿时,硝酸起到了双重作用,既利用了硝酸的化学能分解磷矿,把矿中的五氧化二磷转变为可被作物吸收的形态,其本身又能作为作物的养分留在产品中,起到以氮带磷的作用,经济上比较合理。
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asymptotically flat space time
asymptotically flat spacetime
asymptotically minimax estimate
asymptotically negligible condition
asymptotically normal
asymptotically normal distribution
asymptotically normal estimate
asymptotically normally distributed estimator
asymptotically optimal
asymptotically optimal estimate
asymptotically optimal sequence
asymptotically proportional sequence
asymptotically stable
asymptotically stable equilibrium
asymptotically stable point
asymptotically stable scheme
asymptotically stable set
asymptotically stable solution
asymptotically stable system
asymptotically unbiased
asymptotically unbiased estimate
asymptotically unbiased test
asymptotic analysis
asymptotic analysis of laminar flame
asymptotic approximation
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