英语词汇protoactinium怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	protoactinium
释义	protoactinium 英/ ?pr??t???k?t?n??m / 简明释义 n.镤英英释义 n. 1 a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead 同义词：protactinium??/??Pa??/??atomic number 91
随便看	positive edge of cross cut positive edge positive edge triggered positive edge triggered positive edge triggered positive education positive effect positive effect of antagonicity positive effector positive effects positive electrical charge positive electricity positive electro-affinity positive electrod positive electrode positive electron positive electron affinity positive electrostatic charge positive electrotropism positive element positive elevation positive elongation positive emission positive emitter positive emotion

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