短語(yǔ)詞組短語(yǔ)boron n plastic 含硼塑料boron fibre reinforced plastic 硼纖維增強(qiáng)塑料Boron Fiber Reinforced Plastic 硼纖維增強(qiáng)復(fù)合材料neodymium -iron-boron plastic magnet 釹鐵硼系塑料磁體boron -in-plastic 含硼塑料 返回 boron plastic