Through a series of laboratory and small pilot scale continuous experiments, the feasibility of urea - calcium superphosphate production with Yichang phosphorous ore has been proved.
通过一系列的实验室试验和小型中间连续试验，明确了宜昌磷矿制尿素过磷酸钙的可行性。
2
The serum ionized calcium, citrate, bicarbonate, sodium, serum creatinine and urea concentration.
监测血清游离钙、枸橼酸、血钠、碳酸氢根浓度；
3
Study on effect increased weight by compound nutrition block which composed salt, the urea, the molasses, the calcium hydrogen phosphate and the sodium sulfate.