three pointed pkt.是什么意思

用法例句

Synthesis and antitumor activity of the derivatives of cephalotaxine and drupacine;

三尖杉碱和桥氧三尖杉碱衍生物的合成及抗肿瘤活性

Synthesis of 2′-Hydroxy-2′-[-di-n-butoxyl]-phosphonyl-6′-methyl-heptanoylcephalotaxine and Separation of its Epimers;

2′-羟基-2′[二正丁氧基]-膦酰基-6′-甲基-庚酰三尖杉碱的合成及其差向异构体的分离鉴定

3-(6-Ethynyl-benzodioxol-5-yl)-2-hydroxy-propane-1-sulfonic acid 4-iodo-pent-4-enyl ester is a key intermediate in the synthesis of cephalotaxine.

3-(6-乙炔基-苯并[1,3]二氧杂环戊烯-5-基)-2-羟基-丙磺酸-4′-碘-4′-戊烯酯是我们设计的三尖杉碱化合物合成路线中的关键中间体,其分子中的末端炔键对于构建三尖杉碱的环状结构及立体化学至关重要。

Applied anatomy of percutaneous replacement of tricuspid valves;

经皮三尖瓣置换的应用解剖

Determination of Six Trace Elements in Cephalotaxus fortunei Hook.f. by Flame Atomic Absorption Spectrometry;

火焰原子吸收光谱法对三尖杉中六种微量元素的测定

Determination of Six Metallic Elements in Cephalotaxus fortunei Hook.f.and Taxus chinensis var.mairei by Flame Atomic Absorption Spectrophotoments;

火焰原子吸收光谱法对红豆杉和三尖杉中六种金属元素的测定

Cephalotaxus fortunei Hook.

三尖杉是重要的濒危和木本药用植物。

Effects of surgical treatment on incised or dissected tricuspid valve and its appendix;

三尖瓣及其附件离断后外科处理的转归

Preparation of stented sheep autologous pericardium tricuspid valve and its implantation;

羊带支架自体心包三尖瓣的制备和置换研究

Objective:To prepare valved tricuspid stent and to discuss the techniques of transcatheter tricuspid valve replacement in vitro.

目的:研制可经导管植入的带瓣膜三尖瓣支架,探索置换三尖瓣的技术。

Sub-tricuspid pacing were performed in 21 patients(experimental group).

目的明确三尖瓣下起搏技术在永久起搏器植入术中的应用价值。