Refki雷夫基
refn.裁判员
refuelling satellite station人造卫星加注燃料站
refining on textual research考证精核
refractive index fluctuation折射率起伏
refrigerated microcentrifuge冷冻微量离心机
Refrigeration and cryocooler制冷与低温工程
refxactory castable material浇注料
refrangible rays of light.可折射光线
refrigerating condenser pump制冷装置冷凝器泵