sodium phosphotungstate

例句：

1. 1. The new anti-corrosion coating is made of sodium phosphotungstate.
   新型防腐蚀涂料由钠磷酸钨酸钠制成。
2. 2.Sodium phosphotungstate is widely used in the field of electronics.
   钠磷酸钨酸钠在电子领域有广泛应用。
3. 3. In order to improve the corrosion resistance of the steel, sodium phosphotungstate was added to the welding wire.
   为了提高钢材的耐腐蚀性，向焊接线中加入了钠磷酸钨酸钠。