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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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liquid ramjet combustion chamber
liquid ramjet engine test
liquid ramjet fuel regulator unit
liquid ramjet ignition unit
liquid ramjet inlet
liquid ramjet nozzle
liquid ramjet performance parameter
liquid ramjet turbopump
liquid ring
liquid ring compressor
liquid ring vacuum pump
liquid rocket engine combustion chamber
liquid rocket engine for attitude controlling
liquid rocket engine ignition device
liquid rocket engine performance parameters
liquid rocket propellant
liquid rubber
liquid safety detector
liquid scintillant mixture
liquid Scintillation counter
liquid scintillation counter
liquid scintillation counting method
liquid scintillation detector
liquid scintillation detector; liquid scintillation counter
liquid scintillator
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更新时间:2026/9/30 8:32:23