radioactivity什么意思

radioactivity的音标：radioactivity的英式发音音标为：[ˌreɪdɪəʊæk'tɪvətɪ]radioactivity的美式发音音标为：[ˌredioæk'tɪvɪti]...

This is a Geiger counter for detecting radioactivity.这是一种盖革计数管,用来测量辐射的.A metal called uranium gave off a kind of radiation, which Marie Curie later called radioactivity.一种叫铀的金属发出一种射线, 后来玛丽·居里把这种现象称为放射性.The site was found...

the process of decontaminating areas exposed to radioactivity清除受放射污染地区有害物质的过程The soil contains 30 times the acceptable level of radioactivity.这片土壤受到了高于标准30倍的辐射.The site was found to be contaminated by radioactivity.发现此地受...

barrack的第三人称单数（三单）为：barracks...

The feeding of dairy cows has undergone a revolution.乳牛的喂养方法发生了巨大的改变。They eat a lot of meats and dairy foods, along with a lot of miscellaneous items that don't fall into any group.他们吃了大量的肉和奶制品，还有许多不知道该归为什么类别的杂七杂八的东...

n.教师，卖弄学问的教师( pedagogue的名词复数 )...

错误的...

n.inexpressive（缺乏表情的）的变形，不表现（无表示）...

“口语”的拼音为：kǒu yǔ...

literally的反义词有：figuratively, figuratively。adv.literally的反义词（照字义地）：figuratively。literally的反义词（其他释义）：figuratively。...

fevervine的音标：fevervine的英式发音音标为：[fi:'vɜ:vaɪn]fevervine的美式发音音标为：[fi'vɜvaɪn]...

n.腺，[机]密封压盖，填料盖...

The sword - handler took the cape, looking up at Brett.随从接过斗篷, 一面抬头看看勃莱特.Handler's ID, drivers'ID and driving license ( one year driving ).经办人身份证 、 驾驶人员身份证和驾驶证 ( 驾龄一年以上 ).I have also seen some very nasty accide...

boyhood的复数形式为：boyhoods...

“不定性”的拼音为：bù dìng xìng...

dibucaine的音标：dibucaine的英式发音音标为：[daɪ'bju:keɪn]dibucaine的美式发音音标为：[daɪ'bjukeɪn]...

parlor的音标：parlor的英式发音音标为：['pɑ:lə]parlor的美式发音音标为：['pɑlə]...

“方向”的近义词/同义词：偏向, 倾向, 目标, 对象, 宗旨。...