Besides, there are about 79 small and medium scale units producing single superphosphate.
此外，还有约79中小规模的单位生产过磷酸钙。
Using pot experiment, the transformations of different forms and the bioavailability of added Pb in soil blended with single superphosphate (SSP) were determined.
采用盆栽试验方法，研究了施入过磷酸钙磷肥对土壤中外源铅的形态变化及其生物有效性的影响。
A great quantity of acid wastewater is discharged from the production process of sulfuric acid, single superphosphate and ammonium phosphate, causing serious pollution of water bodies.
硫酸、普钙和磷铵生产过程中排放大量酸性废水，对水体造成严重污染。
A great quantity of acid wastewater is discharged from the production process of sulfuric acid, single superphosphate and ammonium phosphate, causing serious pollution of water bodies.
硫酸、普钙和磷铵生产过程中排放大量酸性废水，对水体造成严重污染。
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