词汇	blacklead spar
释义	blacklead spar n.黑铅矿
随便看	crucible-cast steel crucible chamber crucible charge crucible contamination crucible cooling jacket crucible cover crucible die crucible disc crucible-drawing technique crucible evaporator crucible for casting crucible furnace covercrucible furnace roof crucible furnace inductor coil crucible furnace, pot furnace, tank furnace crucible graphite crucible handle crucible hearth crucible holder crucible induction furnace crucible kiln crucible leakage crucibleless crucibleless method crucibleless technique crucibleless zone melting