在光学中我们赞成光的波动说，而反对光的微粒说。
In optics we have to decide in favour of the wave theory against the corpuscular theory of light.
他是自然科学史上第一个试图把光的微粒说和波动说统一起来的自然科学家。
But he was the first scientist in the history of natural science who unified the particle theory and the wave theory of light.
我们已经知道微粒说解释了许多已观察到的现象，光的波动说也能做到这一点吗？
We have seen that the corpuscular theory explains many of the observed facts. Is the wave theory also able to do this?
他说，这样做会导致不必要的波动。
它“会影响我们在市场上所看到的波动，”他说。
It "contributes to the volatility we're seeing in the market," he says.
他们说，由于每天食量的波动而导致的不规则的生长，是使突然死亡的危险上升的原因。
They say uneven growth, due to the fluctuation in the amount eaten per day, is responsible for the increase in the risk of sudden death.
研究说，我们或许认为高收入家庭的劳动收入会比低收入家庭更不容易遭受剧烈波动，但实际上情况正好相反。
'One might expect that the labor income of higher-end households is more insulated from aggregate fluctuations than that of low-income households, but it in fact is more exposed,' the study says.
不过他说，重要的不是年年都有波动的死刑数量，而是执行死刑的国家。
But he says the important point is not the number of executions, which fluctuates from year to year, but the number of countries that carry out executions.
在拉美，这类企业能够很好地应对波动，Elstrodt先生如是说。
In Latin America such firms cope well with volatility, says Mr Elstrodt.
他们说，日圆汇率近期的“过分波动”对全球经济和金融体系构成了威胁。
The G-7 finance leaders said the yen's recent 'excessive volatility' threatens the global economy and financial system.
但埃克·森美孚的管理者不断地重复说着他们是长期投资，并不会因暂时的股价波动而动摇。
But Exxon's managers endlessly intoned that they invested for the long term, and would not be moved by temporary swings in prices.
他们说，日本企业近年来一直采取措施让自身不受汇率波动影响，还有其他趋势降低了日圆走强给日本带来的冲击。
They point to moves by corporate Japan in recent years to insulate itself from currency fluctuations, as well as other trends that reduce the impact of a stronger yen on the ground in Japan.
他说，长远来看，这能保护公司不受汇率波动的影响。
Over the long term, that protects the company from currency swings, he says.
作者说，其报告中更令人不安的一个结论是，流向脆弱国家的援助具有高度的波动性。
The authors say one of the more troubling findings of their report is the high level of aid volatility to the fragile states.
如果你们把它想成是一个粒子的话是很矛盾的，但记住我们这里说的，是电子的波动性。
That might seem confusing if you're thinking about particles, but remember we're talking about the wave-like nature of electrons.
胡晓炼说，全球经济还在复苏，当然有一定的波动性，复苏过程将会比较缓慢和曲折。
'the global economy is still recovering,' Ms. Hu said. 'Sure, there is some volatility but it won't double dip.
就是说，正常情况下的波动往往又短又小。
That is, under normal circumstances fluctuations tend to be short and small.
需求的波动则来自于，比如说，增加生产生物燃料的政策。
Demand shocks have come from sudden policy decisions to increase biofuel content in gasoline, for example.
西南证券首席宏观分析师董先安说：“对于很多出口商来说，美元的波动是一个严重的问题。”
Dong Xian 'an, economist with China Southwest Securities, said: "For many exporters, the dollar's fluctuation is a serious concern."The ability to settle trade in the yuan would reduce such risk.
晨星分析员格列格.布朗（Greg Brown）说，这样做可以降低学费账单来临前，股市波动导致的资金风险。
That helps lower the risk of heavy losses right before the tuition bills roll in, says Morningstar analyst Greg Brown.
“波动性就在这里，而且并不像要走的样子。”McCarty说。
Volatility is here, and it doesn't appear to be going away, "McCarty said."
“波动性就在这里，而且并不像要走的样子。”McCarty说。
Volatility is here, and it doesn't appear to be going away, "McCarty said."
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