Before inflorescence, the day length requirement was not strict.
开花前，对日长要求不严格。
Photoperiodism The response of an organism to changes in day length.
植物对于日照长度改变所引起的反应。
In plants, leaf fall and flowering are common responses to seasonal changes in day length.
在植物中，落叶和开花是对日长季节性改变的普遍反应。
Within a year, they frequently changed seven boyfriend, short day length is also less than three months.
一年内，就频繁地换了七个男朋友，短至一日，长也不过三个月。
This paper showed that sorghum 2421 is a very photosensitive variety for day length by covering light treament.
本文通过遮光实验旨在研究高粱品种2421的光周期性。
How do natural variations such as the changing day length make such profound alterations to physiology and behaviour?
昼夜长短之类的自然变化是如何对野生动物产生如此深刻的生理变化及行为变化呢？
Instead of defining the length of an iteration in a RUP project, the workload is always aligned with the 30-day length sprint.
工作总是按照30天的“疾跑”排列下来的，而不是定义一个RUP项目的一次迭代的长度。
Photoperiod responses were studied for diverse type of soybean varieties in different latitude area by using simulated nature day length.
采用模拟自然光照的动态光照处理，对不同纬度不同类型大豆品种，进行了光照特性研究。
The twisting had previously been blamed for a 60-year cycle in day length, but the rate of rotation found in this study suggests it is not the culprit, says Jon Mound at the University of Leeds, UK.
这种震动以前被诟病为60年周期性日长变化的原因，但该研究发现的自转速度表明，它并不是罪魁祸首，英国利兹大学的乔恩芒德说。
The Egyptians probably measured their day in twenty-four hours of unequal length.
埃及人很可能用不同长度的24小时来计量他们的一天。
Spring starts when the day and night are the same length.
当白天和黑夜一样长时，春天就开始了。
In order to track temporal hours during the day, inventors created sundials, which indicate time by the length or direction of the sun's shadow.
为了在白天追踪时间，发明家发明了日晷，它通过太阳阴影的长度或方向来指示时间。
Autumn starts when the day and night are the same length again.
当白天和黑夜再次等长时，秋天就开始了。
On this day, day and night all over the world are equal length.
在这一天，世界各地的白天和黑夜都一样长。
Day and night were divided into the same number of parts, so that except at the equinoxes, days and night hours were unequal; and then of course the length of these hours varied with the seasons.
白天和黑夜被分为均等数量的部分，所以除去昼夜平分点，白天和黑夜时间是不等的；当然，这些时长也因季节变化而变化。
Most animal behaviour is guided by the length of the day rather than temperature.
大多数动物是根据白天的长短变化而不是气温变化行动的。
And while Esa insisted that team spirit remained high during an earlier, 105-day simulation, the length of the mission means that the cosmonauts will be metaphorically flying into uncharted territory.
而欧洲宇航局曾在早期一项105天的模拟中坚持了团队精神保持高昂状态。任务的时长意味着宇航员们将飞进未知领域。
In fact, winds and oceans currents have a bigger effect on the length of the day than this February 2010 earthquake in Chile.
事实上比起2010年2月的智利地震，风和洋流能对一天的长短产生更大的影响。
Intimately connected with the length of day and night are our seasons, especially summer and winter; for together with the sun's light heat is also called forth.
与白昼和黑夜的时间长度密切相关的是一年中的四季变化，最明显的是夏季和冬季的差别。其原因是太阳的光照和温度在同时发生作用。
It is gradually slowing down and factors such as disruptions in the earth's core, extreme weather, volcanic eruptions and earthquakes can all influence the precise length of the astronomical day.
地球的自转正在逐渐的慢下来，而像地核分裂、极端天气、火山爆发、地震发生等事件都会影响天文日的确切长度。
In fact, winds and oceans currents have an even bigger effect on the length of the day than this earthquake did.
事实上，相对地震，季风和洋流对一天时间长短的影响更大。
On the 27th day of the experiment, the researchers measured stem length, root-system length and the overall weight of the plants.
实验第27天，研究者测量了茎的长度，根系长度以及植物总重量。
I remember but little of the journey; I only know that the day seemed to me of a preternatural length, and that we appeared to travel over hundreds of miles of road.
一路行程，我已记得不多。只知道那天长得出奇，而且似乎赶了几百里路。
It was only at two points in the year that the night and the day were of equal length and that was at the spring or fall equinox.
一年之中只有两次，白天和夜晚的长度一样，即春分和秋分。
Don't be fooled by the notion that on the autumnal equinox the length of day is exactly equal to the length of night.
别被秋分日昼夜长短相等的概念愚弄了。
It is generally used to boost energy and health, but in 2005, Canadian researchers found that when people take ginseng every day, they decrease the severity and length of colds and often prevent it.
人参通常用于增强体能，保持健康，但2005年，加拿大研究人员发现，如果人们每天服用人参，他们的感冒次数和严重程度会减少，经常还可以阻止感冒。
A team of researchers interviewed 153 healthy men and women each day for 14 days about the length and quality of their sleep the previous night.
一个研究团队约访了153位健康男性和女性，在14天中每天都了解他们昨天晚上的睡眠时间和睡眠质量。
The experienced length of a day, or week, or season, has nothing to do with calendrical time.
一天，或一周，或一季节所经历的时间长短与历法的时间无关。
We have talked at length about what happened on that fateful day, and how my forgiving him has changed both our lives.
我们曾详尽地谈论灾难性的那天所发生的事情以及原谅他后我们各自生活都如何地改变？
We have talked at length about what happened on that fateful day, and how my forgiving him has changed both our lives.
我们曾详尽地谈论灾难性的那天所发生的事情以及原谅他后我们各自生活都如何地改变？
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