消费者想象自己在不同天气下的活动。
然而，这种纯粹的视觉系统在恶劣天气下毫无用处，到了20世纪30年代，无线电通信开始用于空中交通管制。
However, this purely visual system was useless in bad weather, and, by the 1930s, radio communication was coming into use for ATC.
直升机在相当恶劣的天气下救助船舶失事的海员们。
Helicopters fly in appalling weather to succour shipwrecked mariners.
尼日利亚军方在酷热的天气下汗流浃背，要求我们为从引擎部件到毂盖的每一样东西进行注册登记。
Nigerian military drenched in sweat from the blazing heat and demanded registration papers for anything from engine parts to hubcaps.
通常情况下，飞机不会在2月到次年10月之间经行极地，因为在漆黑、寒冷的天气下飞行是很危险的。
Normally planes don't go to the polar post from February to October because of the dangers of flying in the pitch-dark and cold.
检查一下汽车下方有没有液体泄漏。除了汽车空调在炎热的天气下工作产生的冷凝水外，任何时候汽车都不应该滴水。
Look under the car for fluid leaks. Except for condensation from a working air conditioner on a hot day, no car should ever drip anything, any time.
2015年，比利时两所大学的科学家加入了这些蚂蚁的行列，他们来到沙漠，花了一个月的时间在极端的高温天气下追踪蚂蚁，挖掘蚂蚁的巢穴。
In 2015 these ants were joined in the desert by scientists from two Belgian universities, who spent a month in the extreme heat tracking the ants and digging out their nests.
大火在干燥的天气下正向四面八方蔓延。
The fires were spreading in all directions in the dry conditions.
有经验的海员会告诉你在这种天气下的航行情况。
Experienced seamen will advise you about sailing in this weather.
众所周知，在湿热的天气下锻炼，应大量补充水分；
YOU already know that if you exercise outside on hot and humid days, you should drink plenty of water.
救援队伍都揣测在这种酷暑的天气下很难找到任何幸存者。
Most rescuers are now suggesting that due to the intense heat it is very unlikely any more survivors will be found.
船只可以在恶劣天气下也避开已知的冰山和曲折的海岸线。
Ships can avoid known icebergs or hazardous shorelines even in the roughest of weather.
胡萝卜也有同样问题，在干旱天气下，不可能长得很匀称。
The same goes for carrots, which might not grow evenly in drought conditions.
如果我们没有马上做涂装工作，板在这种天气下很快就会生锈。
If we do not do this painting job immediately, the plate will rust quickly in the weather like this.
“(我们想)远离那些我们在寒冷天气下遇到的大雪。”他说道。
"(we just want) to get away from the snow we've been having and the cold weather," he said.
上周我们谈了如何避免体温降低和其他寒冷天气下的损伤的方法。
We talked last week about ways to avoid hypothermia and other cold-weather injuries.
时刻我们都有帐篷或直升机在手边以备在恶劣天气下做庇护之用。
There will be always a tent or helicopter close at hand to take shelter in from the adverse weather.
在炎热的天气下，皮肤需要更多的血液来降温，因此供给肌肉的血液就减少了。
In hot weather, more blood is sent to the skin for cooling so less blood flows to your muscles.
有些刺激的运动，像橄榄球和足球，都在各种的天气下练习与比赛。
Some exciting sports, like football and soccer, are practiced and played in all kinds of weather.
但是随着你在寒冷天气下的锻炼，要时刻留心身体的感觉，以防受伤，如冻伤。
But as you exercise during cold weather, continually monitor how your body feels to help prevent cold-weather injuries, such as frostbite.
这三颗卫星均为光学卫星，它们可以在白天和良好天气下抓拍图像。
The three are all optical satellites, which can capture images in daylight and in clear weather.
在寒冷的天气下锻炼时，你可能会犯的最大的错误之一就是穿得太暖和。
One of the biggest mistakes you can make while exercising in cold weather is to dress too warmly.
你只需掌握少数几个关键策略并确定一个坚定的目标，这样就能在任何天气下跑起来。
All you need are a few key strategies and a firm running goal and you'll be running in any kind of weather.
在寒冷的天气中你需要保证体重有充足的水分，就像你在温暖的天气下锻炼一样。
You need to stay well hydrated when exercising in cold weather just as you do when exercising in warm weather.
继续往下看，千姿百态的云，有的只能在特定的地点特定的天气下才能得以一见。
Moving on, clouds comes in various forms and some can only be seen in certain weather and places.
同时还警告不要“在炎热的天气下将3GS放到车内，或者直接在阳光下听音乐。”
And it warns against using "GPS tracking in a car on a sunny day or listening to music while in direct sunlight."
同时还警告不要“在炎热的天气下将3GS放到车内，或者直接在阳光下听音乐。”
And it warns against using "GPS tracking in a car on a sunny day or listening to music while in direct sunlight."
应用推荐