IR紅外光譜法銥(77號原素)學術名詞資訊檢索:造船工程、電子工程、資訊紅外線:電機工程、化學詢問回答器紅外線:海事IR:化學英文釋義a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium