因此，这两个因素都会影响周期；而实际上，周期似乎是由这两个因素的结合产生的。
Thus both factors can affect the cycle, which, in practice, seems to be generated by conjunction of the two factors.
风是由热空气上升产生真空而引起的空气流动。
Wind is a current of air caused by a vacuum caused by hot air rising.
雷电是由闪电产生的冲击波，它被认为是引发暴雨的原因，而暴雨是风暴的典型特征。
Thunder, the shock wave that comes from a lightning flash, is thought to be the trigger for the torrential rain that is typical of storms.
例如，一些毒液基于化学物质，而另一些基于细菌，所以它们显然是由不同的途径产生的，可能不像我们想象的那样密切相关。
For example, some venoms are chemical-based, and others are bacteria-based, so they clearly had to have developed along different routes and may not be as closely related as we thought.
兰皮诺认为某些冰碛岩是由流星撞击而产生的，而不是冰川。
Rampino thinks that certain tillites were produced by meteor impacts, not glaciers.
它们类似于彩虹，但它们是由月光而不是太阳光直接照射产生的。
They are similar to rainbows, but they are created by moonlight instead of direct sunlight.
在右下角围绕着天蝎座Sigma的突出的红色星云是由星尘将恒星的光线散射开来而产生的反射星云。
The prominent reddish nebula at the lower right surrounding the star Sigma Scorpii is a reflection nebula produced by dust scattering starlight.
南极天文台三大观测宇宙的天文台之一，旨在检测由宇宙大爆炸而产生的大量存在于微光辐射中的扭曲现象，利用天文望远镜对宇宙射线背景进行筛选，再利用星系群的特点确定一个点，即当宇宙射线穿过极热气体时会产生轻微混乱，混乱的那一刻就是所要找的那个点。
The telescopes sift through the background cosmic radiation to find spots where it has been slightly perturbed as it passes through extremely hot gas, a hallmark characteristic of galaxy clusters.
命题真理是由经验事实所决定的，而不是由我们的意图决定的，这样就产生了一个关于自然的问题。
A proposition whose truth is determined by the fact of experience rather than what we mean, so this raises a natural question.
跳过调度触发的结果通常由简单地将数据库中的时间和调度程序的当前时间相比较而产生。
This skipping over schedule triggers usually results from simply comparing the time in the database with the current time in the schedule program.
而人类身体的进化又需要依赖这种由蠕虫产生的至少低水平的化合物才能保证其在正常范围内运作。
It may be that our bodies evolved to depend on at least low levels of worm-produced compounds to keep them running within normal bounds.
从沙丘顶上可以看到三英里外的大海，笼罩在由沙漠热量和冰冷的本格拉洋流交汇而产生的雾气之中。
From the crest there is a view to the ocean, three miles distant, shrouded in fog created by the convergence of desert heat and the icy Benguela Current.
由讨论而产生的一系列行动是更易管理的，这促进足够经常地进行调查，从而在恶化前抓住问题。
The list of actions that grow out of the discussions is more manageable, which encourages surveys to be conducted often enough to catch problems before they fester.
这些不切实际的认识只能让一些人由单身而产生的问题变得更加麻烦。
These unrealistic statements only serve to make the problem some have with being single worse.
地球大气层中的甲烷是由活体生物产生的，而木星或其他气态行星上的甲烷是由光与大气层中其他化学物质相互作用而产生的。
On Earth, atmospheric methane is generated by living organisms, but on Jupiter and other gas giants, methane is produced by light interacting with other chemicals in the atmosphere.
由这种混杂而繁衍产生了一个现叫作美国人的种族。
From this promiscuous breed, that race now called Americans have arisen.
该病的特点是反复发作——由一群脑细胞突然且通常是短暂过度放电而产生的物理反应。
It is characterized by recurrent seizures - which are physical reactions to sudden, usually brief, excessive electrical discharges in a group of brain cells.
这些为客户提供便利的服务都需要消耗电能，而电能是由电厂设备产生的。
All of these amenities require a certain amount of electric consumption, in turn delivered by a utility generating it from one of its plants.
对话框屏幕由特定任务的选择而产生。
A dialog screen results from the selection of a specific task.
一项新的研究表明：被称作暗物质的神秘物质可能只是一种虚像，由物质与反物质的短寿命粒子之间的引力相互作用而产生的。
The mysterious substance known as dark matter may actually be an illusion created by gravitational interactions between short-lived particles of matter and antimatter, a new study says.
研究人员发现，极化率大小明显由DNA链的长度决定——80个碱基对长度的DNA链产生了60%的极化率，而25个碱基对长度所致的极化率只达到10%。
The researchers found that the polarization was a strong function of the length of the DNA strands – with 80 base-pair-long strands giving 60% polarization but 25 base pairs only yielding about 10%.
关注最近新闻的人们都会知道，《无油世界》没有解决世界依赖石油的问题，也没有解决由依赖而产生的无数相关问题。
Anyone who has paid attention to recent news knows that world Without oil did not solve the problem of the world's dependency on oil or the myriad related issues this dependency creates.
此外该技术能用于探索副作用，它们有些是由药物始料未及地与蛋白质结合而产生。
The technique could also be used to look for side effects, which are sometimes caused by drugs binding to proteins in unexpected ways.
事件由创建、更新或删除业务对象而产生。
An event results from a business object being created, updated, or deleted.
瑞士公投有些是出于政客要求，而许多是称为“创制”的公投，即对由公民请愿提议而产生国家法律的投票。
Some Swiss votes are ordered by politicians, yet many, known as "initiatives", are binding votes on national legislation triggered by citizens' petitions.
地震所处位置发生在当地地震学家称作的东方地震带上。由菲律宾板块和亚欧大陆板块相互挤压而产生。
The earthquake's location was in what geologists in the area call the East Seismic Belt, where earthquakes are caused by the collision between the Philippine plate and the Eurasian plate.
地震所处位置发生在当地地震学家称作的东方地震带上。由菲律宾板块和亚欧大陆板块相互挤压而产生。
The earthquake's location was in what geologists in the area call the East Seismic Belt, where earthquakes are caused by the collision between the Philippine plate and the Eurasian plate.
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