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单词
single superphosphate
释义
single superphosphate
Encyclopedia
工学
湿法磷肥
释
single superphosphate
过磷酸钙
用硫酸分解磷矿直接制得的磷肥。又称普通过磷酸钙,简称普钙。主要有用组分是磷酸二氢钙的水合物[Ca(H2PO4)2·H2O]和少量游离的磷酸,还含有无水硫酸钙组分(对缺硫土壤有用)。过磷酸钙含有效五氧化二磷为14%~20%(其中80%~95%溶于水),属于水溶性速效磷肥,灰色或灰白色粉料或颗粒料(由粉料造粒制成),可直接作磷肥,也可作制复合肥料的配料。
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square lattice
square law
square-law detection
square-law detector
square line picking
square loss function
squarely equivalent to zero
square mapping
square map subdivision
square matrix
square matrix of order n
square mean value of electric quantities fluctuation
square mean value of thermal electromotive force
square mean velocity of Brownian particle
square measure
square mesh
square mesh grid
Square Mountain and Changyu Dongtian Scenic and Historic Area
squareness
squareness measurement
square net
square number
square of a number
square of opposition
square of order n
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