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- 平均R-R间期average R-R interval
- 动态心电图长R-R间期对中老年患者病窦综合征诊断价值的探讨Evaluation of long R-R pause in dynamic electrocardiography in the diagnosis of sick sinus syndrome of middle aged and older patients
- 她说话带着乡下人的轻柔的r音。She speaks with a soft rural burr.
- R-SBFR-SBF
- R&D资金research and development fund
- R&D合作R&D cooperation
- 孕妇心电图中短P-R间期现象的临床意义THE CLINICAL SIGNIFICANCE OF SHORT P-R INTERVAL PHENOMENON OF ELECTROCARDIOGRAM IN PREGNANT WOMAN
- 空间E-R模型Spatial E-R model
- 厚向异性系数rcoefficient of normal anisotropy r
- （R）-2-三甲基硅-2-羟基丙腈( R )-2-trimethylsilyl-2-hydroxyl-ethyleyanide
- 间期interphase
- 印度粉、巴西粉(M.B.R)烧结性能的烧结杯试验研究STUDY ON SINTERING CHARACTERISTICS OF INDIAN ORE FINES AND BRAZIL ORE FINE(M.B.R)
- 构建宿主菌基因精确定位突变株31BK(aroD::aroBKan~r)The mutant 31BK was engineered, in which homologous recombination of the aroBKanr gene cassette into the aroD locus(aroD::aroBKanr)of the E.
- 动态心电图对心房颤动合并长R-R间期的临床分析Clinical analysis of the dynamic electrocardiography recording atrial fibrillation with long R-R interval
- I期病例的KAll/CD82表达水平与n+nI+W期病例的表达水平比较，其结果有显著性意义，P<0.05，r>0。The expression of KAI 1/CD82 in NO stage compared with the one in Nl and N2 stage .
- 平均捕获间期average capture interval
- F-R间期F-R interval
- 平均峰间间期mean interspike interval; MISI
- P-R间期an ECG interval; an electrocardiogram interval; P-R interval; PR; PR int
- 被动间期passive interval
