1)  4F catheter
4F造影导管
1.
To compare 4F catheter with 6F catheter in coronary angiography by femoral artery approach;
方法把疑诊冠心病病人409例分成两组,分别使用4F造影导管178例和6F造影导管231例行冠状动脉及左心室造影,对比两组病人手术成功率,术后止血压迫时间、开始活动时间、局部及全身并发症发生率等。
2)  4f~25d
4f~25d
3)  4f orbital
4f轨道
1.
Structure feature of RE and effect of its 4f orbital in bonding process were discussed,and hybridization mode including 4f orbital component was depicted,finally calculation procedure about bonding capacity of the hybridization orbital was afforded.
论述了稀土元素及其结构特点,讨论了4f轨道在成键中的作用,描述了4f轨道参与形成杂化轨道的杂化方式,给出了杂化轨道的成键能力计算方法。
4)  4F catheter
4F导管
1.
Diagnostic coronary angiography by femoral artery approach with 4F catheter in 115 cases;
使用4F导管经股动脉径路行冠脉造影115例体会
5)  4f system
4f系统
1.
Optical logic coding based on 4F system;
基于4F系统光学逻辑编码的实验
2.
Off-axis Fresnel holograms recorded with a magnified image, which is obtained by using a 4f system, are numerically reconstructed.
通过记录经4f系统放大的物体实像的离轴菲涅尔数字全息图,由数字再现技术获得物体的放大像,由此计算出物体相位反差像,从而得到物体的微现形貌。
3.
The sample to be measured was placed at the Fourier plane of the 4f system and a diaphragm with phase object was used to modulate the nonlinear phase shift to the amplitude change of the electric field in the image plane.
其原理是利用一个相位光阑将放置在4f系统频谱面上的非线性样品中产生的非线性相移调制成像平面上的振幅变化,从而测量样品的非线性折射率的大小和符号。
6)  f electron
4f电子
1.
Based on the principle of symmetry operation, the formulae of crystal field potential of 4f electron with different symmetry are presented.
研究了不同对称环境下,对称操作对4f电子晶场势的限制规律,得到了表示4f电子晶场势的快捷方法,为稀土化合物晶场参数的确定提供了方便。
参考词条
补充资料：导管




导管  
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  [图]图

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