超重元素

With the synthesis of heavy elements approaching the super heavy island,the production cross section becomes smaller and the lifetime of the super heavy element becomes longer,which results in the difficulties for identification of the elements by using conventional alpha decay chain technique.

随着合成的超重元素向超重岛逼近，合成截面越来越小，同时，合成的超重元素的寿命可能相对增长，这对利用α衰变链的传统方法鉴别超重元素是非常不利的。

Berkelium, for example, was first synthesized at the University of California, Berkeley.

但到目前为止所生成的超重元素及其同位素的寿命都很短，大多在秒和毫秒的量级。

Such superheavy elements are usually very radioactive and decay away almost instantly.

这种超重元素通常是具有非常强的放射性，并且几乎立即会发生衰变。

In the process of construction, superheavy form board props up system scheme designing that the technology is standard should observe safety , is in progress strictly according to the design plan.

在建筑过程中，设计超重元素的模板扶植系统计划技术是标准的应该观察安全，根据设计规划确实地是过程中。

The importance of the atomic spectroscopy of heavy elements, especially the superheavy elements has been briefly reviewed.

论述了重元素，特别是超重元素原子谱学的重要意义。

In order to help experiment measurement the low-lying structures of superheavy elements,some energy levels were suggested to be of good candidates for experimental observations.

为了能够对实验直接测量超重元素能级结构提供帮助，我们还预言了Hs和Uub元素的几个可能被实验观测到的共振态的能级位置和吸收振子强度。

The safety the pole setting entirety is stabilized to superheavy form board of project plays arrive at decisive role.

安全杆设置全部被稳定对项目戏剧超重元素模板到达果断角色。

The α-decay lifetimes of the newly synthesized superheavy element s are calculated using the α-cluster model and the results are in good agreement with experimental data.

用α 结团模型计算新合成超重元素的半衰期，与已知的实验数据进行对比分析，发现理论和实验数据能够很好地符合，验证了α结团模型对超重核研究的有效性。

The atomic properties of the superheavy element Hs(Z=108)and Uub(Z=112)have been studied theoretically in conjunction with the effects of electron correlations and relativistic effects.

在超重元素原子结构的研究中，通过细致考虑电子关联效应和Breit相互作用，计算了Hs(Z=108)和Uub(Z=112)原子的激发态结构、共振吸收振子强度及其一价和二价离子的基态等相关性质。

Form board pole setting Fang Mu by the fact that superheavy basement roof form board props up system's to in the project bears the weight of the checking calculation being in progress strenuously , the form board construction scheme satisfies call for in reaching this project.

模板杆由事实的设置犬齿Mu超重元素地下室屋顶模板扶植系统的对在项目吃力地负担检查的演算的重量过程中，模板计划满足呼叫请求在到达这个项目的建筑。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。