您要查找的是不是：
- alpha active nucleus α放射核
- The fortress was the nucleus of the ancient city. 这城堡是这座古城的中心。
- The researches are concerned with alpha rays. 这些研究是关于阿尔法射线的。
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- The protoplasm outside the nucleus of a cell. 细胞质，细胞浆细胞分子外部的细胞质
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
- Wheat is the alpha and omega of their diet. 小麦是他们的主要食物。
- These 1000 books will form the nucleus of the new school library. 这一千本书将构成学校新图书馆藏书的基础。
- An active volcano may erupt at any time. 活火山随时可能喷发。
- measurement of gross alpha activity in non-saline water (thick source method) 在不含盐的水中总峄疃炔饬: 厚源法
- He was disabled when on active service. 他在战斗中受伤致残。
- The atomic center is the nucleus, and the electronics winds revolve it. 原子的中央是原子核，电子绕着它旋转。
- Ms. Brown is active in the party. 布朗女士在晚会上很活跃。
- The active boy was extremely distractible. 那好动的男孩极不专心。
