单词	外[向]导数
释义	外[向]导数outward derivative
随便看	open-hearth open hearth furnace open-hearth furnace open-hearth furnace cast steel open-hearth furnace charging crane open hearth process open-hearth process open hearth slag open hearth steel open-hearth steel open hearth steelmaking open hearth steel-- simens martin steel open hearth steel; simens martin steel open-hearth steel (simens martin steel) open-heart surgery open heater open herd book open hole open hook chain open house open housing open-housing open ice open ifntercrossing openig and picking machine