1)  F2
第二共振峰
1.
Changes of F2 of patients with complete denture;
全口义齿修复后辅音第二共振峰的变化
2)  F2
声学参数F2
3)  F2
F2
1.
The association of self-fruitful rate and rate of pollen stained with 1%I2-KI of F2 of A2 cytoplasmic male sterility(CMS)and A3 CMS in Sorghum was analyzed with F2 populations of three A2CMS cross classifications(A2T×622×Jinliang 5,A2V4×1383-2 and A2V4×Jinliang 5) and three A3CMS cross classifications(A3 299×1174、A3 2457×1174、A3JW×1174).
以高粱3个A2类型杂交种(A2TX622×晋粱5号、A2V4×1383-2、A2V4×晋粱5号)和3个A3类型杂交种(A3299×1174、A32457×1174、A3JW×1174)的F2群体为材料,来进行A2?A3类型高粱F2代花粉碘染色率与田间自交结实率之间关系的研究。
2.
sibiricus and their Hybrid F1,F2 were analyzed by using random amplified polymorphic DNA(RAPD)markers.
利用随机扩增多态性DNA技术(RAPD)对加拿大披碱草和老芒麦及其杂种F1,F2做了比较分析。
3.
The performance of yield characteristics of F2s from different japonica ecotype crosses including northeast China ecotype,north China ecotype and Japan ecotype and the frequency of individuals were analyzed.
在分析盐粳68与粳亚种中的东北粳、华北粳、日本粳3种生态型杂种F2产量性状的表现及不同类型个体出现频率的基础上,初步认为与日本粳品种组配的F2群体出现穗数型个体频率较多,与华北粳品种组配的F2群体出现穗重型个体频率较多。
4)  DER
DER
1.
Implementation of DER Coding/Decodign for Certificate & Key Management System;
证书与密钥管理DER编解码研究
2.
By comparing differences among all encoding rules, and gives implementation projects of other rules such as CER,DER and PER based on BER.
同时，通过比较各种编码规则的特点，在BER编解码实现的基础上，给出CER、DER及PER编码的实现方案。
5)  DER
可辨认编码
6)  f2 factor
f2因子
1.
Methods:The dissolution profiles of model drug were drawn through detecting samples by UV method,f2 factor was employed to evaluate the similarity of dissolution profiles of different formulations in order to optimize the formulation.
方法:以紫外分光光度法对格列齐特推拉式渗透泵的体外释放度曲线进行测定,应用f2因子法为手段,对不同处方中药物释放曲线的相似性进行评价,对处方进行优化。
参考词条
补充资料：登九疑第二峰
【诗文】：
九疑第二峰，其上有仙坛。杉松映飞泉，苍苍在云端。
何人居此处，云是鲁女冠。不知几百岁，燕坐饵金丹。
相传羽化时，云鹤满峰恋。妇中有高人，相望空长叹。



【注释】：



【出处】：
全唐诗：卷241_32
说明：补充资料仅用于学习参考，请勿用于其它任何用途。