您要查找的是不是：
- 铬坚牢橙Rchrome fast orange R
- 硫化橙Rsulfur orange R
- 金莲橙Rtropaeolin R
- 铬chromium
- 赫林顿橙Rhelindone orange R
- 她说话带着乡下人的轻柔的r音。She speaks with a soft rural burr.
- 橙orange
- 镀铬chromeplate
- R-SBFR-SBF
- R&D资金research and development fund
- 六价铬hexavalent chrome
- R&D合作R&D cooperation
- 重铬酸钾potassium dichromate
- 空间E-R模型Spatial E-R model
- 染色固定剂,用于提高皮革染色的湿坚牢度Fixing agent improving the wet fastness of the leather
- 橙花orange blossom
- 厚向异性系数rcoefficient of normal anisotropy r
- 火车上的座椅套子磨损很大，所以要用坚牢的布料制做。Seat covers on trains takes a lot of wear and tear so they need to be made from strong material.
- 铬合金chrome
- 酸橙lime
