Study on the dissolved rate of six trace elements in rizhao green tea 日照綠茶中6種微量元素溶出率的研究
Although the phere will normally dissolve in a few hours , the dissolving rate is a function of fluid temperature , fluid movement , friction , and absorbability of the crude 盡管正常情況下清管器會在幾個小時內(nèi)溶解,但溶解率是關(guān)于流體溫度、流體移動、摩擦和原油吸收力的一個函數(shù)。
Using the orthogonal experimental technique , we studied modified pva by formaldehyde , urea and tdi , and analyzed the influence of synthesis condition to its solid content , viscosity , dissolving rate and crosslinking degree 摘要采用正交實驗方法,研究了甲醛、尿素和甲苯二異氰酸酯對聚乙烯醇的疏水改性,并分析了合成條件對其固含量、黏度、溶出率和交聯(lián)度的影響。