| 1. | With neutrons, the light element is not usually at any marked disadvantage .
对于中子，轻元素通常不是一个突出的问题。 |
| 2. | The abundance of those lighter elements allowed scientists to deduce that fission reactions must have gone on for hundreds of thousands of years
这些较轻元素的含量让科学家推论出，核分裂反应必定进行了好几十万年。 |
| 3. | The measurement of light element in the fields of steel industry , metallurgy , geology and environmental protection is an important object
轻元素检测方法的研究是钢铁、冶金、地质和环境等领域中的一个重要研究课题。 |
| 4. | Acoustics - laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms - application to light elements when the junction has a small influence
声学.邻接房间之间空气和碰撞噪音侧向传声的实验室测量.当连接有小影响时轻元素的应用 |
| 5. | Acoustics - laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms - application to light elements when the junction has a substantial influence
声学.邻接房间之间空气和碰撞噪音侧向传声的实验室测量.当连接有实质性影响时轻元素的应用 |
| 6. | Plastics ( or polymers ) . which usually contain light elements , and therefore have relatively low density , are generally insulators , and are flexible and formable at relatively low temperatures
塑料（聚合物）通常包含轻元素，因而密度较低，一般为绝缘体，并能在较低温度下弯折和成形。 |
| 7. | The exact abundances of the three lightest elements are an important test of the so - called standard model of physics ? the list of fundamental particles found so far and the forces that link them
物理标准模式理论中有一项极为重要的试验，该试验检测的是宇宙空间中3中质量最轻元素的确切丰度，即需要列出到目前所发现的基本粒子与将它们融合起来的各种作用力。 |
| 8. | When hydrogen is fused to helium , energy is produced . however , we have to supply energy to fuse iron to even heavier elements . this is why we can split a heavy nucleus , like uranium , into several smaller ones to produce energy
氢转化为氦会产生能量，但要把铁结合成更重的元素时，却反而要吸收能量，这也是为甚么我们把如铀等重元素分裂成较轻元素时，可以产生能量的原因。 |
| 9. | Furthermore , if the expansion had been accelerating , two key aspects of the early universe ? the pattern of cmb variations and the abundances of light elements produced seconds after the big bang ? would not agree with current observations
再者，若膨胀一直都在加速，那麽cmb的异向性变化，和在大霹雳之后数秒所生成的轻元素含量，这两项早期宇宙的关键宇宙学预测，也会悖离现今的观测。 |
| 10. | Is not only a parameter for measuring expansion of the universe , it can also be used to determine the age and the size of the universe , amount of dark matters , numbers of hadrons and abundance of light elements in the universe and even the structure of the early universe , and so forth
的一个参数，而且还可以用来计算宇宙年宇宙大小宇宙中黑暗物质的数量重子数目轻元素丰度甚至早期宇宙形成的结构等等。 |
