常見例句雙語例句The 3%LM-solubilized fractions are separated by different methods: sucrose density gradient ultracentrifugation, anion exchange column, molecular size elution column.對於3%LM增溶後的類囊躰膜蛋白，分別採用了蔗糖密度梯度離心，離子交換柱層析和分子篩層析等分離純化方法。A linear relationship between the density gradient a nd height in a density gradient column was established and the calculation formula for solutions in the National Standard was modified.針對塑料密度這一重要的物性蓡數(shù)的密度梯度法測定，從理論上對影響密度梯度柱配制過程的各個(gè)方麪進(jìn)行了分析； 對密度梯度與高度的線性關(guān)系進(jìn)行了理論的推導(dǎo)； 返回 density gradient column