您要查找的是不是：
- There are fertile fields in the Nile Delta. 尼罗河三角洲土地肥沃。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- The plains of Alberta are extremely fertile. 艾伯塔平原极其肥沃。
- Most chicken eggs are not fertile. 多数鸡蛋未受精。
- The fields hereabout are fertile. 这一带的土地很肥沃。
- fertile uranium 铀
- The country is barren, with here and there a fertile spot. 土地荒芜，只是偶尔有一两片沃土。
- Not fertile; unproductive or barren. 不肥沃的不肥沃的; 不生产的或贫瘠的
- The rotation of crops keeps the soil healthy and fertile. 谷物轮种使土壤保持了肥力和高质。
- The barren land has been turned into fertile fields. 贫瘠的土地已改成良田。
- Uranium is a lithophile element. 铀是亲石元素。
- They drained the swamp and turned it into fertile land. 他们排去沼泽地的水，将它变成了肥沃的土地。
- The land is so fertile that three crops a year can grow. 这片土地很肥沃,一年可种三季庄稼。
- We have irrigated the desert area to make it fertile. 我们已经灌溉了荒芜地区使它肥沃。
- Uranium fills interstitial space. 铀充填在颗粒间的空间。
- Uranium is used to fuel nuclear plants. 铀用作核电厂的燃料。
- Highly enriched uranium can be produced in China. 中国现今能生产高富集铀。
- Uranium is abundant in some parts of the world. 铀在世界上某些地方的蕴藏量十分丰富。
- New Mexico leads the nation in uranium mining. 在铀的开采方面，新墨西哥居于全国首位。
- Uranium should be housed in safe. 铀必须封存在安全装置内。
