单词	套節烟筒
释义	同CHIMNEY
随便看	differentialrechnung differential recovery differential recovery rate differential recrystallization differential rectification differential rediscount rate differential reflectivity factor differential refraction differential refractive index detector differential refractometer differential regulating transformer differential regulation differential regulation of autopilot differential regulator differential reinforcement differential relative molecular mass distribution differential relay differential rent differential reproduction differential resistance differential resolver differential revenue differential rf mixer differential riccati equations differential ring