短語(yǔ)詞組短語(yǔ)hollow niobium sphere 空心鈮球Hollow carbon sphere 空心碳球hollow selvedge sphere 空心球hollow -sphere 中空微球hollow ceramic sphere 空心陶瓷球hollow conduct sphere model 空心球殼模型hollow nickel sphere 空心鎳球hollow composite sphere 組合球壁hollow CuO sphere 中空CuO納米顆粒材料 返回 hollow sphere