A new method for determining anthraquinone of Cassia obtusifolia L.提出了三氯化鈦-分光光度法測定決明子中總蒽醌含量的新方法.GC method for the determination of cinnamaldehyde in cassia bark capsules has been developed.采用氣相色譜測定中成藥右歸膠囊中桂皮醛的含量.Natural ...
Double - black duotone: A duotone created from two black plates.雙黑雙色調: 由兩塊黑版印制的雙色調.Double - tone half - tone : A colour plate printed slightly out of register to create a duotone effect.雙重 半色調: 用一顏色印版,作稍為不準的套印,從而產生雙色調的效果...
The apical membrane of the epithelial cells is apparently essential.上皮細胞的頂膜顯然是必要的.Nothing but a great many epithelial cells was observed in the stain.染片中只觀察到有大量的上皮細胞.Epithelial tissue occurs most commonly in sheets.上皮組織通...