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- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- The luminous intensity on unit area. 单位面积上的发光强度。
- She was experimenting in selected units. 她在试点单位进行试验。
- The family is the smallest social unit. 家庭是社会最小的单位。
- He was the discoverer of the element radium. 他是镭元素的发现者。
- Pressure is force per unit area. 压力就是电单位面积上的力。
- A set of data elements which are handled as a unit. 作为一个单元来处理的一组数据元素。
- The family is the basic unit of society. 家庭是社会的基本单位。
- A continuous inked ribbon used on output units. 在输出设备(如打印机)上使用的一种连续上油墨的色带。
- Radium is a radioactive element. 镭是个放射性元素。
- A metric unit of area equal to 10 ares. 十公亩面积的公制单位之一,等于十公亩。
- At one end of the barrel there was some radium. 枪管的一端装有镭。
- A metric unit of mass equal to 100 grams. 百克公制质量单位,等于100克。
- Who is the scientist that first discover Radium? 最先发现镭的科学家是谁?
- A unit of power equal to 1,000 watts. 千瓦功率的单位,等于1,000瓦。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- The carpenter knocked up some kitchen units for us out of old pine. 木匠用老杉木为我们匆匆做了几件厨房用具。
- Who is the scientist that first discovers Radium? 最先发现镭的科学家是谁?
- A unit of currency in Chile, Panama, and Uruguay. 分智利、巴拿马和乌拉圭的货币单位
- Who was the discoverer of Radium? 谁是镭的发现者?