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- Keywords radionuclide;effective annual dose rate;external hazard index;the radium equivalent activity; 天然放射性核素;年有效剂量;外照射指数;等效镭浓度;
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- A dime is equivalent to ten pennies. 一角等于十分。
- The dividend pay is equivalent to one quarter of the pretax profit. 所付股息相当于税前利润的四分之一。
- A dime is the equivalent of two nickels. 一角硬币等于两个五分镍币。
- A meter is equivalent to 39.37 inches. 一米相当於三十九点三七英寸。
- radium equivalent 镭当量
- His reply is equivalent to a refusal. 他的回答等於是拒绝。
- A note equivalent to two whole notes. 二全音符相当于两个全音符的一个音符
- milligram radium equivalent 毫克镭当量
- A balance designed to weigh very small loads, up to 0.1 gram. 微量天平用来称量极其小量重量的天平，精确到0.;1克
- He was the discoverer of the element radium. 他是镭元素的发现者。
- A dust particle weighs only a thousandth of a gram. 一粒尘埃的重量仅有千分之一克。
- minimum pure radium equivalent 最小纯镭当量
- What is 5 equivalent to in French francs? 5英镑相当於多少法国法郎?
- Currently, nanotubes cost $100 per gram. 现在，每克纳管的价格是100美元。
- He changed his pounds for the equivalent amount in dollars. 他把英镑兑换成等值的美元。
- Radium is a radioactive element. 镭是个放射性元素。
- This letter is ten gram overweight. 这封信超重10克。
- Your letter be fifty gram overweight . 您的信超重50克。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
