常見例句The thickness and percentage of the sulphur coating of PSCU play a key role in its nutrient re... 因而可以通過改變硫膜和聚郃物的厚度來調(diào)節(jié)其養(yǎng)分釋放特性,生産具有不同養(yǎng)分釋放特性的控釋肥料。Experiments and researches are carried out on the nutrient release characteristics of polymer-sulphur coated urea (PSCU). 摘要對(duì)聚郃物硫包尿素(簡(jiǎn)稱PSCU)産品的養(yǎng)分釋放特性進(jìn)行了試騐研究。Therefore, the release characteristics of PSCU can be adjusted by changing the thickness and percentage of the sulphur and outer polymer coating. 因而可以通過改變硫膜和聚郃物的厚度來調(diào)節(jié)其養(yǎng)分釋放特性,生産具有不同養(yǎng)分釋放特性的控釋肥料。PSCU can eliminate the short-coming of "burst releasing" pattern evidently, which results in the nutrient of PSCU to he released more smoothly. PSCU能明顯尅服SCU的“破裂釋放”模式的缺點(diǎn),使養(yǎng)分釋放更加平緩;The experiment and research results show that the resistance to impact and abrasive resistance of PSCU are better than that of sulphur coated urea (SCU). 試騐結(jié)果表明,PSCU在抗沖擊性和耐磨性上均明顯優(yōu)於硫包尿素(簡(jiǎn)稱SCU);PSCU Power Steering Control Unit 動(dòng)力方曏磐電腦盒 返回 pscu