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.
其功能与周期蛋白和周期蛋白依赖性激酶形成的异源三聚体存在化学计量关系。
It functions in stoichiometric relationships forming heterotrimeric complexes with cycling and cyclin-dependent kinases.
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.
在测试中你们可以使用，化学元素周期表的官方版本，你们应该大部分都有了吧。
You are allowed to use on the test the official version of the Periodic Table of the Elements which most of you should have by now.
后来，安德里亚凡安绰波夫(Andreasvon Antropoff)在1924年，利诺斯·卡尔·鲍林(Linus C . Pauling)在1932年，都做出了类似预测。预测的依据是：周期表里的化学趋势。
Similar predictions were made later, by Andreas von Antropoff (1924) and by Linus C. Pauling (1932), based on chemical trends in the periodic table.
铜（29），镍（28），锌（30）在化学周期元素表中紧挨着彼此，并且它们还拥有一些相同的特性。
AS WELL as being close to each other on the periodic table, copper, nickel and zinc share several traits.
我们周围的某些化学物质会影响人体的内分泌系统——其作用是通过调节激素分泌从而控制体重、生理周期以及生殖能力。
Some of the chemicals that are all around us have the ability to interfere with our endocrine systems, which regulate the hormones that control our weight, our biorhythms and our reproduction.
取决于你今后从事哪个方向的化学研究，你可能会不经意地记住周期表的某一部分，这就够了，但是要注意，你真正需要知道的是如何使用元素周期表。
Depending on what kind of chemistry you go in to, you might accidentally memorize parts of the table, which is fine, but what you really want to know how to do is know how to use the periodic table.
这种方法是一种有效的综合运用非化学和化学方法的方法，并充分利用害虫生长周期的一种方法。
IPM is an effective pest control method that uses information on the life cycle of the pest and incorporates nonchemical and chemical methods.
缺乏光照有可能破坏你的醒睡周期和昼夜节律，还可能改变一种叫血清素的脑化学物质进而影响情绪。
Lack of light may upset your sleep-wake cycle and other circadian rhythms. And it may cause problems with a brain chemical called serotonin that affects mood.
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.
相反，他发现氦，氖，氩，都是惰性气体，惰性的意思是基本不参与化学反应，因此把它们放在周期表中的同一类里。
Versus looking at, for example, helium or neon or argon, these are all inert gases, inert meaning essentially do not react, those were grouped together in the periodic table.
在元素周期表中，砷就位于磷的下面，二者具有很多相同的化学性质。
Arsenic sits right beneath phosphorus in the periodic table of the elements and shares many of its chemical properties.
自一位在自己一根头发上刻下元素周期表的化学家之后，米罗·诺夫是我最喜欢的疯狂科学家。
Mironov may be my favorite mad scientist since the chemist who had the periodic table engraved on one of his hairs.
在我们这个宇宙里出现了漫长生命周期的恒星，具有稳定轨道的行星，能够实现复杂化学变化的分子，仿佛它的物理法则曾被精确校准过。
In our universe the laws of physics seem precisely calibrated to allow the existence of long-lived stars, planets with stable orbits, and molecules that allow complex chemistry.
新兴经济体的需求和注重特殊化学品的战略共同推动了经营业绩周期性好转，这促使收益率上升。
Profitability has been improved thanks to a cyclical upturn driven by demand from emerging economies and a strategy of placing greater emphasis on specialty chemicals.
这项研究是新生物学的起点，正像元素周期表界定了化学范围一样，它将界定生物学的范围。
That would be the starting point for a new sort of biology, one in which the scope of the problem was defined in the way that the scope of chemistry is defined by the periodictable.
摘要本文通过生物控制和化学控制提出了具有周期脉冲效应与害虫控制的捕食系统。
In this paper predator-prey systems with periodic impulsive effect concerning pest control are proposed through biological control and chemical control.
血清素是一种大脑中的化学物质，在睡眠周期中起着主要作用。浾。
Serotonin nis a brain chemical with a central role in sleep cycle regulation.
在太阳和行星形成之前，所有元素周期表上的化学元素在太阳系的原始尘埃中四处漂浮着。
Before the formation of the sun and planets, all the chemical elements found on the periodic table were floating around in the primordial dust of the Solar System.
第一种控制方案是一种微扰控制，并能将BZ-CSTR化学混沌稳定控制到其内嵌的不稳定周期轨道（UPO）上去。
The first control method is a kind of perturbation control and can stabilize the BZ-CSTR chemical chaos to its embedded unstable periodic orbits (UPO).
供体细胞的细胞周期、细胞类型、冷冻处理和化学激活等方面都可能影响动物克隆的效率。
The effect of using donor cells of different cell cycle, cell type, chemical activation, as well as refrigeration, on cloning animal has been summarized.
在模具纹路加工中，传统的化学蚀刻方法存在污染大、加工周期长的缺点。
In the processing of the mold texture, the traditional chemical etching exits the shortcomings of the pollution and the long processing cycle.
俄国化学家门捷列夫在1869年公布了他的元素周期表。
In 1869, Dmitri Ivanovich Mendeleev, a Russianchemist, published his periodic table of the elements.
俄国化学家门捷列夫在1869年公布了他的元素周期表。
In 1869, Dmitri Ivanovich Mendeleev, a Russianchemist, published his periodic table of the elements.
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