当然,它在被人发现或制造前,就是一种元素周期表使得我们期待其存在的元素。
Of course, it was an element the periodic table let us to expect existed before anyone had found it or made it.
这两位化学家都非常有远见,他们对周期性的物理性质和化学性质进行分析,并在预示应该出现新元素的地方留下了空位。
Both chemists were sufficiently farsighted to leave gaps where their analyses of periodic physical and chemical properties indicated that new elements should be located.
事实上,后来的研究已经证明,在元素周期表中,元素不应该严格按照原子质量来排序。
In fact, subsequent work has shown that in a periodic table, elements should not be ordered strictly by atomic mass.
沿着周期表的对角线的中间有大约包含六个元素的元素组。
There is this group of about half a dozen right down the diagonal middle of the periodic chart.
这能解释为什么它在元素周期表中缺失了吗?
例如在元素周期表中,碲排在碘之前,尽管它的原子质量略大一些。
For example, tellurium comes before iodine in the periodic table, even though its atomic mass is slightly greater.
镓表现出的性质与门捷列夫对“铝下元素”的预测密切对应,为周期律提供了有力的支持。
The close correspondence between the observed properties of gallium and Mendeleyev's predictions for eka-aluminum lent strong support to the periodic law.
早期的元素周期表有空缺,缺少一些元素。
Early versions of the periodic table had gaps, missing elements.
我建议有关生命周期元素的映射原则的协议就足够了。
I suggest that agreement on the mapping principles for lifecycle elements is sufficient.
因为元素定义在配置文件中(清单3),所发现的服务将自动进入治理生命周期。
Because a element is defined in the configuration file (Listing 3), the discovered services are automatically placed into a governance life cycle.
响应时间分解为您所测试的系统显示了诸如每一项元素的周期等细节。
Response time breakdown shows details such as the duration of each element for the system that you are testing.
而在周期表里此行最重的元素,惰性气体氦,用于压力舱那类东西的小裂缝。
The next heaviest element in the periodic table, the inert gas helium, is used for detecting cracks in pressure vessels and the like.
比如,考虑一下用XML表示的元素周期表。
As an example, consider the periodic table expressed in XML.
我们需要引其他一些东西进来才能解释清楚,元素周期表中发生的这种现象。
We need to add something else in order to explain what is going on in the Periodic Table.
然后我们再开始讲元素周期表,我们会看到很多周期性规律,比如电离能,电子亲和能,电负性以及原子半径。
We'll then take a turn to talking about the periodic table, we'll look at a bunch of periodic trends, including ionization energy, electron affinity, electronegativity and atomic radius.
在元素周期表里序列号是83,标志是BI。
It is on the periodic table of elements under the symbol Bi at atomic number 83.
如果Expires元素出现,它说明所产生序列的期望的生存周期。
If present, the Expires element indicates the desired duration of the created Sequence.
她给了奥巴马一个元素周期表的微型复制品。
She gave him a miniature copy of the periodic table of elements.
门捷列夫于1869年制定周期表时,表中包含63个元素,而现在化学课堂中一个类似的图表元素已多达118个。
When Dmitri Mendeleev devised his periodic table in 1869, it contained 63 elements; a similar chart in a chemistry classroom now has up to 118 entries.
因此,要记住,当你在看元素周期表时,不要忘了镧系元素,有时候也会用到它们。
So, remember when you're looking at your periodic table, don't forget about the lanthanides, sometimes they come into play.
我们认为现在需要对不断演化的系统的更长生命周期(在这个周期中主要演化的元素是软件)重新阐释我们的最佳实践了。
We think it's time to re-articulate our best practices for the broader lifecycle of continuously evolving systems, in which the primary evolving element is software.
就像化学上的元素周期表,该系统拥有充足的机会来进行混合,创造合金,或添加混合物质。
Like the Periodic Table of the Elements, this system holds ample opportunity for mixing proportions, creating alloys, and adding impurities.
内部变化——如上所述,在整个核心实体生命周期内,某些上下文元素不期望被改变。
Internal changes - As mentioned above, during the core entity lifecycle, there are certain context elements that are not supposed to change.
当某一层排满电子时,周期表中的下一元素就启用新的一层,此即标志着周期表新的一行元素的开始。
When a shell is full, the next element in the series starts a new shell, and that marks the beginning of a new row of the table.
但这位语速飞快的工业奇才已经翻遍了元素周期表,也找不出一种比钯更安全的替代元素。
And the fast-talking industrialist has exhausted the rest of the periodic table looking for an element that is a safer power source than palladium.
在使用大量短暂生命周期的元素时这一点尤为明显。
This is especially apparent when using a large number of short-lived elements.
《周期表的故事:元素的奇特经历》休•奥尔德-威廉姆斯著。
Periodic Tales: The Curious Lives of the Elements. By Hugh Aldersey-Williams.
锂是元素周期表第三“轻”的元素,这使得锂具备更高的能量密度。
Lithium is the third-lightest element on the periodic table, which allows for far greater energy density.
那么当我们沿着行向右走的时候,这是我漂亮的元素周期表。
So as we go across the row, and this is my beautiful picture of a periodic table here.
那么当我们沿着行向右走的时候,这是我漂亮的元素周期表。
So as we go across the row, and this is my beautiful picture of a periodic table here.
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