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- He found a piece of fossil of an ancient bird. 他发现一块古代鸟类的化石。
- This fossil may be over 2 million years old. 这化石可能超过二百万年了。
- The luminous intensity on unit area. 单位面积上的发光强度。
- Can you date the fossil exactly? 你能确定这化石的确切年代吗?
- The family is the smallest social unit. 家庭是社会最小的单位。
- 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。
- Isn't Professor Bell an old fossil? 贝尔教授真是个老顽固。
- 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。
- A microscopic fossil, as of a pollen grain or unicellular organism. 微体化石一种微小的化石,如花粉粒或单细胞有机体的化石
- A metric unit of mass equal to 100 grams. 百克公制质量单位,等于100克。
- If we squander our fossil fuels, we threaten civilization. 如果我们浪费矿物燃料,我们就威胁文明。
- 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
- A unit of currency in Chile, Panama, and Uruguay. 分智利、巴拿马和乌拉圭的货币单位
- A metrical unit consisting of seven feet. 七韵步由七个音步组成的格律单位
- A unit of currency in North Korea and South Korea. 朝鲜和韩国的一种货币单位
- The gossip tossed the mossy blossom fossil. 爱讲闲话者向上抛长满苔藓的花化石。
- A squad is the smallest unit in an army. 班是军队的最小构成单位。