您要查找的是不是：
- 维A衍生物 retinoin<眼上皮细胞鳞状化生用药>
- 叶绿素-a衍生物 Chlorophyll-a derivative
- 维生素A衍生物合成工艺的改进 An Improved Method for Synthesis of Vitamin A Derivatives via Wittig-Horner Reaction
- 叶绿素-a衍生物卟吩环上取代基的变化对其可见光谱的影响 Change for Substitute Group on Chlorin Ring of Chlorophyll-a Derivative Effecting on Their Visible Spectra
- 维A酸 Tretinoin
- 度维A Doretinel
- 芬维a胺 fenretinide(肿瘤预防药)
- 六维空间 sextuple space
- 衍生物来源于特别的出处或由一特别的来源分支衍生而来的物体 Something that branches out or derives its existence or origin from a particular source.
- 把A误以为 take A for B
- ｎ维带 n-dimensional tape
- 把A视为 looked upon A as B
- ｎ维链 n-chain
- ｍ维曲面 m-dimensional surface
- 把A比喻 compare A to B
- ｎ维胞腔 n-dimensional cell
- 把A换成 exchange A for B
- ｎ维边界 n-boundary
- ｎ维代码 n-dimensional code
- 我得了一个A-。 I got an A minus.
