两头尖

超临界CO2萃取两头尖皂甙研究

Study of the saponin in Anemone raddeana Regel by supercritical CO_2 fluid extraction

老师：你想坐一下两头尖的平底小船吗？

Teacher : Would you like to go on a gondola ?

两头尖细细长体压力中心的实验研究

Experimental research on center of pressure of the slender body with two pointed ends

不分结的蠕虫，身体圆而细长，两头尖；多数为非寄生而少数为寄生。

Unsegmented worms with elongated rounded body pointed at both ends ; mostly free-living but some are parasitic .

上述研究结果，为进一步研究两头尖多糖的化学结构、生物学活性及应用开发奠定了基础。

These results , in order to further study the chemical structure of polysaccharides , pharmacology , biological activity and laid the foundation for application development .

对两头尖的化学成份进行了深入研究，从中分离出24个化合物，利用理化性质、光谱分析等手段鉴定了21个。

The chemical constituents of " LiangTouJian " were deeply studied , 24 compounds were isolated . 21 of them were elucidated on the basis of physico-chemical method , spectral analysis and by comparison with some authentic samples .

一种大的、两头渐尖的钉，在接合绳头前用来解开一股绳。

A large , tapering pin used to open the strands of a rope before splicing .