yttriumn. 釔釔Y學術名詞釔:化學元素、礦冶工程、金屬材料、電子工程、資訊、機械工程釓:電機工程、核能釔Y:電力工程Yt:電力工程英文釋義a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys