您要查找的是不是：
- 左R-模left R-modules
- 纯内射左R-模pure injective left R-module
- 纯投射左R-模pure projective left R-module
- 左R-可消幺半群left R-cancellation semigroup
- 左left
- 她说话带着乡下人的轻柔的r音。She speaks with a soft rural burr.
- 模的modular
- 向左sinistrad
- R-SBFR-SBF
- 模数modulus
- R&D资金research and development fund
- 左对齐flush left
- R&D合作R&D cooperation
- 模组card of pattern
- 数学建模Mathematical Modeling
- 空间E-R模型Spatial E-R model
- 左下角lower left corner
- 厚向异性系数rcoefficient of normal anisotropy r
- 模态mode
- 弹性模量elasticity modulus
