英语词汇钷的读音、翻译及短语词组释义-英汉双解词典-求索网

单词	钷
释义	钷【医】 florentium Il illinium Pm 钷(1)鉕pǒ(2)稀土族的一种金属元素,自然界中不存在其稳定的同位素,发现的钷为放射性形式,是铀的裂变产物,也可从中子照射制得,半衰期2.64年。表现出其它稀土元素的化学性质 [promethium]――元素符号Pm
随便看	operational control unit operational cost operational cost control operational data operational defect operational delay operational differential amplifier operational econometric model operational efficiency operational element operational environment operational environment software operational expenditure operational failure operational fatigue operational flowchart operational indicator operationalism operational key operational label operational life proof cycle operational life span operational maintenance operational method operational mode

英汉双解词典收录913115条英汉汉英双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。