tungstic c acid anhydride钨酸酐
tungstic c acid钨酸
supported phosphato-tungstic heteropoly acid catalyst固载磷钨酸催化剂
Tungstic acid hollow tube钨酸空心管
niobium tungstic acid铌钨酸
tungstic acid paste钨酸糊
tungstic acid catalyst钨酸催化
industrial tungstic acid工业钨酸
ortho-tungstic acid原钨酸;正钨酸
N(名词) any of various oxyacids of tungsten obtained by neutralizing alkaline solutions of tungstates. They are often polymeric substances, typical examples being H2WO4 (orthotungstic acid), H2W4O13 (metatungstic acid), and H10W12O14 (paratungstic acid) 钨酸