Astronomic navigation is the earliest one people used, which has the default of low precision and constrained by natural condition, weather and time.
其中天文导航是最早被人们利用的一种导航方法，但这种方法存在受自然条件、天气、时间制约、精度低等缺点。
Improve the accuracy of weather and wind forecasts on time scales from hours to days.
把天气和风力预报的准确性的时间尺度从几个小时的提高到几天的。
In order to attract more viewers to the program and to avoid losing any further advertising revenues, we should restore the time devoted to weather and local news to its former level.
为了吸引更多的观众收看该节目并避免失去更多的广告收入，我们应该把播报天气和地方新闻的时间恢复到以前的水平。
Over the past year, our late-night news program has devoted increased time to national news and less time to weather and local news.
过去一年里，我们的深夜新闻节目增加了全国新闻的播放时间，减少天气预报和地方新闻的播放时间。
Do bear in mind, though, that at this time of year the weather is very changeable and if the cloud suddenly descends, it's all too easy to wander off the track.
但是要记住，每年的这个时候天气变化无常，如果乌云突然降落，就很容易偏离轨道。
They had a wonderful time and they stayed warm and dry in spite of the weather.
他们玩得很开心，不管天气如何，他们都保持温暖干燥。
Wind speed changes from time to time, depending on the time of day, weather and location.
风速随时间、天气和地点而变化。
The Generation Beyond project also includes an iPhone app for iOS providing real time information about weather reports for Mars, and there's also a free deep space course for middle school teachers and students.
“超越一代”项目还包括一个用于 iOS 的 iPhone 应用程序，它可以提供火星天气报告的实时信息，还有一个面向中学教师和学生的免费深空课程。
Frost's Descent, the 18th solar term of the year, is the last solar term of autumn, during which time the weather becomes much colder than before and frost begins to appear.
霜降是一年中的第18个节气，是秋天的最后一个节气，在此期间，天气比之前变得更凉，开始出现霜降。
Researchers want to know details such as GPS position, time, weather and descriptions of the items.
研究人员想知道更多的细节，如GPS定位，时间，天气和看到物品的描述。
At half time, with the weather closing in, the two captains and both managers suggest forgoing the halftime break: they'd rather just change ends and carry on.
在中场休息的时候，天气正渐渐变暗，两支队伍和他们的经理都建议放弃中场休息：他们宁愿仅交换场地并继续比赛。
Since the well is 40 miles offshore and the weather has been relatively clement, there has been time to test dispersal techniques and prepare coastal defences.
因为漏油井距离海岸线40英里并且气候相对温和，所以有时间检验消散浮油技术的效果并做好保护海岸的准备。
A virtual monument it might be but to withstand the weather of time and distance it shall able be.
一个看似虚拟的纪念碑却可以摆脱时间、天气和距离的限制。
Weather and climate are intimately related: weather is the state of the atmosphere at a given place and time, while climate is the aggregate of weather conditions over time.
天气和气候是紧密相连的：天气是在一定地点上一定时间内的大气状况，然而气候是一段时期内天气条件的综合状况。
Exactly where a hypothetical "radiation cloud", from either Fukushima Daiichi or Onagawa, would go should depend upon the weather pattern at the time of, and following, the release.
一片假设的“辐射云”从福岛或者女川方向，在泄露之时以及之后，向哪里移动一定是由天气模式决定的。
The warm weather is rapidly approaching and it's time to collect kindling from the nearby wood and order firewood to dry out for the winter.
天气正在迅速转暖，是时候从附近的树林中收集易燃的材料，订购些柴火弄干了留着冬天用了。
The impact of any terrorist CBRN attack would depend heavily on the success of the chosen method of dissemination and the weather conditions at the time of the attack.
任何CBRN袭击的影响，都严重依赖于在袭击时选择成功的散播方式和气候条件。
NASA meteorologists are predicting a 70 percent chance of launch-worthy weather for the new date and time, the space agency says.
宇航局表示：NASA气象学家预测新时间的天气70%概率适于发射。
The GOES satellites see nearly a full hemisphere of the Earth at one time, tracking weather parameters like clouds and water vapor.
GOES卫星系统可以同时观测近半个地球，追踪诸如云层、水汽等天气参数。
It \ 's already been quite a long time and now the weather is starting to get warmer.
都放置很久了，而且现在天气也开始变热了。
Over the past year, our late-night news program has devoted increasingly more time to covering national news and less time to covering weather and local news.
236去年，我们的深夜新闻节目投入了更多的时间播放全国新闻，较少的时间播放天气预报和地方新闻。
'This gives us time to weather the storm and build up our capital position to the new international standards,' ING's Mr.
该集团的海莱说，这给了我们抵御这场金融风暴，将资本金增加到新的国际标准水平的时间。
I was out of spirits at the thought of leaving all my family and friends for so long a time, and the weather seemed to me inexpressibly gloomy.
想到要和全家人还有朋友分开这么长一段时间，我就提不起精神来，天气对我来说也是无以言表地阴郁。
Nor to ignore the rows and rows of bunkers once used to shelter assault helicopters, their ageing concrete, for now, resistant to the effects of time and tropical weather.
无法忽视的还有那一排排曾经用来躲避直升机袭击的掩体，虽然已年代久远，但眼下仍能抵挡时间和炎热天气的侵袭。
At the same time adverse and extreme weather conditions can jeopardise rice crop production, which feeds more than half the world's population.
与此同时，不利和极端的天气条件会危及稻谷这一供养着世界一半以上人口的作物的生产。
As for my mother, well, she agreed that she'd like to go back at another time (when the weather is warmer) and with more people.
而我妈妈，怎么说呢，她同意在别的时间(天气变暖时)会带上更多的人再光顾此处。
The findings, published in Science this week, could also assist meteorologists in making more accurate weather predictions, and even improve a cyclist's lap time.
研究结果刊登在本周的《科学》杂志还可以协助气象学家做更准确的天气预报甚至提高一个骑自行车转一圈的时间。
The findings, published in Science this week, could also assist meteorologists in making more accurate weather predictions, and even improve a cyclist's lap time.
研究结果刊登在本周的《科学》杂志还可以协助气象学家做更准确的天气预报甚至提高一个骑自行车转一圈的时间。
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