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这自然是过磷酸骨粉的功效。Surely this is due to the superphosphate bone meal.

牛粪、过钙是基质中主要镉污染物质。Cattle manure and calcium superphosphate were main polluting material.

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我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙。We make superphosphate by reacting rock phosphate with sulphuric acid.

对普通过磷酸钙生产系统进行了分析研究。An analytical study is made on the single superphosphate process system.

此外，还有约79中小规模的单位生产过磷酸钙。Besides, there are about 79 small and medium scale units producing single superphosphate.

重钙改产磷铵的关键在于反应和洗涤两部分。The key steps of ammonium phosphate production by triple superphosphate facility lie in the 2 stages of reaction and scrubbing.

介绍了由一个喷射管和一个折流室构成的用于普钙生产的新型混合反应器。A kind of new typer mixing reacter with an injection tube and a baffled chamber for producing calcium superphosphate was introduced.

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在普钙和重钙颗粒上喷涂熔融尿液生产的尿基复合肥还能防止吸湿。Urea based compound fertilizers made by spraying molten urea onto single or triple superphosphate granules can prevent hygroscopicity.

利用2，4，6-三氯嘧啶合成过程中产生的废水制备重过磷酸钙肥的方法。Method for preparing triple superphosphate fertilizer by using waste water generated in synthetic process of 2, 4, 6-trichloropyrimidine.

介绍了由一个喷射管和一个折流室构成的用于普钙生产的新型混合反应装置，它有结构简单、节能、操作方便、质轻体小、成本低、应用效果好等优点。In this paper, a new type of mixing reaction unit composed of injector and baffled chamber, which is used in production of calcium superphosphate.

用红外光谱法探讨造纸与磷肥废液调控普钙水分的机理。The mechanism was Studed by m SPectroscopy that paper making Waste Water and phosphatic manure Waste Water control calcium Superphosphate moisture.

本研究认为鱼精蛋白改性磷酸钙是一种比共沉淀法合成磷酸钙更好的转染载体。It could be expected that nucleoprotamine modified calcium phosphate could be a better transfect agent as compared to coprecipitated superphosphate.

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研究了以普钙和硫酸钾为原料制备磷酸二氢钾的工艺条件。Potassium dihydrogen phosphate was prepared by the reaction of ordinary superphosphate with potassium sulfate, and effecting factors were investigated.

磷酸三钙几乎完全不溶于水，在稀酸中溶解也极为缓慢。所以，作为肥料，通常得把磷酸三钙转化为过磷酸钙。It is practically insoluble in water and only very slowly soluble in diluted acids, so it is largely converted for fertilizing purposes into superphosphate.

文中介绍的控制方案，不仅在普钙湿法工艺中有推广价值，也适用于小磷铵生产工艺。The control tactics discussed in this paper is worth to be popularized not only in wet process of superphosphate but also in production of ammonium phosphate.

研究了用电位滴定法快速测定新鲜过磷酸钙磷肥中有效磷含量的方法。In this paper, quick determination of the content of the effective phosphorus in the new calcium superphosphate by means of potentiometric titration has been researched.

不同施肥处理N、P流失量存在一定差异，其中尿素与普钙配施可减少N、P流失，并获得较高白菜产量。The discharges of N and P vary with different fertilizer applications and urea and superphosphate application can reduce the N and P loss and heighten the cabbage yield.

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根据黄土丘陵区土壤肥力特点及土体结构，选用硝酸铵和过磷酸钙作为试验肥料，进行了不同施肥量试验。According to soil fertility and soil structure in the loess plateau, the experiment of fertilizer amount was carried out with ammonium nitrate and calcium superphosphate.

本文介绍了普钙湿法生产微机控制系统的硬件和软件设计，该系统已在生产实践中收到了明显的经济效益。The microcomputer control system for wet process of superphosphate has gained distinct economic benefit. This paper deals with the hardware and software design of the system.

研究了电位滴定法快速测定普通过磷酸钙磷肥中全磷含量的方法。The author in this paper studies a quick analytical method, namely potentiometric titration on measuring the holophosphate content in ordinary superphosphate phosphate fertilizer.