基本解釋[化學(xué)]取代度英漢例句雙語例句In this paper, the degree of substitution (DS)and reaction conditions variables on the viscosity of cationic starch pastes was studied.合成了陽離子淀粉并對其糊液粘度進(jìn)行了測定。探討了陽離子淀粉的糊液粘度與其取代度和性能的相互關(guān)系。Carboxymethyl starch with degree of substitution(DS)0 6 has been made from corn starch, chloroacetic acid and sodium hydroxide, and with ethyl alcohol as solvent.用玉米淀粉、 氯乙酸和氫氧化鈉為原料，在乙醇溶劑中反應(yīng)制備了取代度為0．6的羧甲基淀粉。Dodecenly succinic anhydride(DDSA) waxy corn starches with paste top viscosity and degree of substitution(DS) were prepared by the base catalyzed reaction with starch granular in aqueous slurry.在堿性條件下，蠟質(zhì)玉米淀粉與十二烯基琥珀酸酐（DDSA）反應(yīng)可制得較高黏度、適宜取代度（DS）的酯化淀粉。degree of substitution ds更多例句專業(yè)釋義化學(xué)取代度