The contents of three valepotriates in v. officinalis also varied significantly different areas, samples from nanchuan of chongqing showing the highest. it is also showed that the contents of three valepotriates in underground part of valerians plants are higher than that in aerial part and the contents of three valepotriates in valeriana jatamansi herb and v. officinal is herb collected in september is highest. valepotriates of valeriana jatamansi were obtained using petroleum ether, with content of valtrate, didrovaltrate and acetovaltrate between 70 % and 80 %
我們以採用rp - hplc法測定不同產地、部位和採收期的纈草屬植物中纈草素、二氫纈草素和乙酰纈草素的含量，結果發現纈草類生藥蜘蛛香、纈草、寬葉纈草和黑水纈草之間纈草素類成分含量差異顯著，其中以蜘蛛香含量最高，纈草次之，寬葉纈草再次，黑水纈草含量最低。
Tahir r b, molder s and timofeev e v. unsteady starting of high number air inlets - a cfd study [ r ]. aiaa 2003 - 5191
梁德旺，袁化成，張曉嘉.影響高超聲速進氣道起動能力的因素[ c ] / / 2005年沖壓發動機技術交流會論文集， 2005
V ： after a very long, very alliterative introduction, it is my very great pleasure to meet you, and you may call me v
The third amphioxus cdna, amphiprxv, encoding peroxiredoxin v, was isolated from the gut cdna library of b. belcheri tsingtauense
Rthernblot 、 dotblot和原位雜交等技術，研究了文昌魚aophihmgb基因的表達圖式。
The indegree of a vertex v in d is the number of arcs with head.