I asked if he was using zinc oxide and he said he wasn't.
我询问他是否使用氧化锌，他说没有使用。
Using zinc oxide and carbon powder as raw material, different shaped ZnO crystals are obtained in different area by the carbothermal reduction method.
以ZnO粉和石墨粉为原料，用碳热还原法获得了分区生长的多种形貌ZnO晶体。
Using zinc oxide mine as a raw material, activated zinc oxide can be produced by ammonia leaching, getting rid of impurity, depositing zinc, drying and calcining.
以锌焙砂为原料，经氨浸，除杂，沉锌，干燥，煅烧等工序制取了活性氧化锌。
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