英语词汇“protactiniu”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

单词	protactiniu
释义	protactiniu protactiniumn. [化]镤（元素符号Pa，等于protoactini... protectionistn. 保护贸易论者 adj. 保护贸易论的 protectionn. 保护, 保卫贸易保护措施防护物 (向歹徒缴纳的... protagonistn. 主角；支持者 protectiveadj. 保护的, 防护的显示保护意愿的
随便看	steam emulsion test的意思 steam end efficiency的意思 steam end valve的意思 steam engine的意思 Steam Engine Age的意思 steam engine boiler的意思 steam engine characterised by uniflow principle的意思 steam engine combined with boiler的意思 steam engine combined with steam condenser的意思 steam engine, compressed gas engine, compressed air engine的意思 steam engine, compressed gas engine, compressed air engine, hydraulic的意思 steam engine, compressed gas engine, compressed air engine, hydraulic engine的意思 steam engine, compressed gas engine, hydraulic engine的意思 steam engineering的意思 steam engine governor的意思 steam engine, hydraulic engine,的意思 steam engine, hydraulic engine, compressed air engine的意思 steam engine, hydraulic engine, compressed gas engine的意思 steam engine indicator的意思 steam engine locomotive的意思 steam engine lubricant的意思 steam engine plant的意思 steam engine plant including at least one combustion engine的意思 steam engine plants的意思 steam engine plants for special steam engines的意思

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