reference gas参考气体； 标准气referencen.参考；参照；出处；推荐人；推荐函v.注明出处；附参考资料Reference Frequency Unit基准频率单位Reference axis technique参考轴技术reference picture select多参考帧选择reference fuel framework校正曲线坐标Reference Our Memorandum参考我方备忘录reference surface center基准面中心reference and consulting参考咨询reference drawing number参考图号reference station system参考站系统Reference Implementation参考实现