有些是人为的，有些则是自然发生的。
自然发生的森林火灾甚至比山体滑坡或积雪更能促进白杨树的生长。
Even more than mountainside slides of mud or snow, naturally occurring forest fires promote the survival of aspen trees.
有一些变暖是自然发生的。随着上一个冰河时代的结束和冰的融化，我们已经经历了长达20，000年的变暖过程。
Part of the warming is natural; we have experienced a 20,000-year-long warming as the last ice age ended and the ice melted away.
天坑通常是一起自然发生的事件。
这些不是顺其自然发生的事。
圣甲虫是新生命和复活自然发生的符号。
The scarab beetle was the symbol of Spontaneous Generation, New Life, and Resurrection.
它也被称为一个最自然发生的有毒物质。
It is also known as one of the most poisonous naturally occurring substances.
有些DNA的变化是自然发生的不会产生有害影响；
Some changes in DNA occur naturally and lead to no harmful effects;
水库诱发的地震应该比自然发生的地震有更多前震。
Zipingpu has such a system. A reservoir-triggered earthquake should have more foreshocks than a natural earthquake.
这些活动在卡片上记录下来，按照自然发生的顺序从左到右排列。
These activities are recorded on cards and arranged from left to right in the order that they would naturally occur.
过程中人为地改变颜色，绿色是自然发生的，也可以射。
The process of artificially altering the colour to green involves irradiating which can also occur naturally.
只需要几个动作，可以扭转因年龄而自然发生的肌肉损失。
With just a few moves, you can reverse the trend of naturally occurring muscle loss that happens with age.
宇宙起源不是完全自然发生的，以上解释是众多原因之一。
The above explains is one of many reasons why the universe could not have had a purely naturalistic beginning.
突变是自然发生的，但大多数有机体能够防止突变引起的损害。
Mutations occur spontaneously, but most organisms have mechanisms that can prevent the damage they might cause.
磷脂酰胆碱是一种自然发生的分子，它是胆碱，磷酸和碳氢化合物组成。
Phosphatidyl choline is a naturally occurring molecule that is composed of choline, phosphoric acid and hydrocarbons.
有时这样的图案是自然发生的，而有时你可能去自行破坏一下图案来摆拍。
Sometimes you'll find these broken patterns naturally appearing around you and on other occasions you might need to manipulate the situation a little and interrupt a pattern yourself.
直到今天，我们的故事还是让我感到惊叹，我喜欢这种自然发生的方式。
Our story still amazes me till this day and I love how it all came to be.
它是自然发生的保税吸入这些化学反应，从而引发出脑影响我们的情绪。
It is the inhalation of these naturally occurring bonded chemicals that triggers out brain to react which then effects our emotions.
然而，人们不知道催眠其实是日常生活中经常体验到的一种自然发生的状态。
Yet what they do not realize is that hypnosis is a naturally occurring state experienced by everyone every single day.
还请注意我们已经将画面速度减慢为每秒1个画面(因为这也是更新自然发生的频率)。
Note also that you slow the frame rate down to one frame per second (because that's the frequency at which updates naturally occur).
但是在人类同样研究IGF1由于的自然发生的GHR突变极端的稀有不可能。
But it was impossible to study IGF1 in humans in the same way due to the extreme rarity of the naturally occurring GHR mutation.
有些DNA的变化是自然发生的不会产生有害影响；这些在一个群体中的变化被称为多态性。
Some changes in DNA occur naturally and lead to no harmful effects; these changes in a population are called polymorphisms.
根据这项研究，这一过程是几千年中自然发生的，但是由于人为造成的气候变暖而加速。
According to the study, the process occurs naturally over thousands of years but is being accelerated by man-made climate warming.
当然了，仅仅因为一张照片所呈现的世界，具有知觉上的准确性，并不证明这就是自然发生的。
Of course, just because a photograph reflects the world with perceptual accuracy doesn't mean it is proof of what spontaneously transpires.
我们家中的氡是接触致电离辐射的主要来源，在许多国家中占大众接触自然发生的辐射源的50%。
Radon in our homes is the main source of exposure to ionizing radiation, and accounts for 50% of the public's exposure to naturally-occurring sources of radiation in many countries.
我们家中的氡是接触致电离辐射的主要来源，在许多国家中占大众接触自然发生的辐射源的50%。
Radon in our homes is the main source of exposure to ionizing radiation, and accounts for 50% of the public's exposure to naturally-occurring sources of radiation in many countries.
应用推荐