When a bad weather low moves in, air pressure lessens, and odors are released.

当恶劣天气到来，气压降低、气味释放。

One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.

误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。

For example, in fair weather, the air pressure is generally high, the air is still, and often full of dust.

例如，在晴朗的天气里，气压通常很高，空气是静止的，而且经常含有灰尘。

The pain that penetrates each joint is brought about by a change in air pressure, such as the change that proceeds a storm.

穿透每个关节的疼痛是由气压的变化引起的，例如暴风雨的变化。

One technical difficulty is cavitation, where low pressure behind a turning blade causes air bubbles.

一个技术难题是气穴现象，一旦发生气穴现象，位于旋转螺旋桨叶后方的低压会产生气泡。

The air tank contains high-pressure purified air and is exactly like the tank used by a SCUBA diver.

空气瓶内装有纯净高压空气，很像 SCUBA 潜水员用的气瓶。

The main factors that affect the pressure and temperature of the chambers can be summarized as air pressure and L/D.

影响腔室压力和温度的主要因素可以概括为气压和长度直径比。

Air temperature and vapor pressure deficit were the key factors affecting transpiration.

气温和蒸气压不足是影响蒸腾作用的关键因素。

More severe cases may be treated with a CPAP machine, so named because they maintain constant positive air pressure to the wind pipe to help users breathe easy at night.

严重一点的患者可能就得用CPAP机来治疗了，人们给它取这个名字是因为它能够给气管提供稳定的空气压力，借以帮助患者在夜间呼吸。

"One of the interesting things about speech - and singing - is we go through a very complicated process so that we have an even air pressure in our lungs," Lieberman says.

“一个有趣的有关说话和唱歌的事情，是我们通过一个非常复杂的过程，使得我们我们肺里的气压保持大体均衡，”利伯曼说。

The change in air pressure associated with a sonic boom is only a few pounds per square foot — about the same pressure change experienced riding an elevator down two or three floors.

和音爆有关的气压变化只有每平方英尺几磅——大约是坐电梯向下两到三层所感受到的气压变化。

This weather balloon will mostly measure temperature, air pressure, and wind speed, but others sample the air for the concentration of various gases like carbon dioxide and oxygen.

气象气球主要是用来测定温度，气压和风速的，另外它还能够测出空气中很多种气体的含量，例如二氧化碳和氧气等。

The effect of car care best practices, such as changing your oil or checking a tire's air pressure, is not implicit unless we have measurements to quantify what we gained or lost.

采取汽车保养最佳实践所产生的效应，例如更换机油或检查轮胎的气压，并不能用于准确地评价质量，除非我们确实找到了度量质量好坏的手段。

Air pressure will cement the object over the hole. And you will walk away a hero.

气压会把它固定在洞上，而你会成为一个英雄。

Air pressure on the surface of the Earth is fairly constant, so in designing a microphone for use on land, engineers don't have to worry about large variations in air pressure.

地球表面的气压相对稳定，因此设计地面用的传音器，工程师并不需烦恼气压的大幅变化。

And the sudden change in air pressure would lead to a nasty case of the bends, as if you were scuba diving and came up too fast.

而气压的突然改变也会引起严重的减压病，就好像你在戴着水肺潜水而上来的太快一样。

The focus of the light on the solar cell can also be fine-tuned by changing the air pressure within the balloon, and thus the curvature of the mirror.

借由改变气球内的气压，就可以调整气球反射给太阳能电池的光线焦距，还有气球内的凹面镜弧度。

The focus of the light on the solar cell can also be fine-tuned by changing the air pressure within the balloon, and thus the curvature of the mirror.

藉由改变气球内的气压，就可以调整气球反射给太阳能电池的光线焦距，还有气球内的凹面镜弧度。

At altitude, the air pressure is lower, and so are aerodynamic effects such as drag and lift, ultimately causing balls to travel faster and straighter than they would at lower altitude.

由于地处高海拔地区，气压较低，因而作用在球上的阻力及升力所产生的空气动力效应也会发生相应反应，最终导致球在空中飞行速度比在低海拔地区快，飞行的路线也更直。

How true is it that maintaining good air pressure in your tires and driving slower will save you gas money?

保持轮胎气压良好以及把车开得慢些真的能够省油钱吗？

PRESSURE】The air pressure at sea level is nearly 15 pounds for each square inch.

海平面上的大气压力每一平方英寸约有十五磅。

Sobel explained the device works even if a patient has been given artificial respiration because it functions regardless of air pressure source.

Sobel解释说该设备甚至可以在病人使用呼吸机时使用，因为它的功能不受气压的限制。

Aircraft are generally kept at an air pressure similar to what you'd find between 6,000 and 8,000 feet above sea level.

飞机的气压通常被保持在海平面上6000到8000英尺的气压水平。

Aircraft are generally kept at an air pressure similar to what you'd find between 6, 000 and 8, 000 feet above sea level.

飞机的气压通常被保持在海平面上6000到8000英尺的气压水平。

Instead of air pressure, it USES magnetic fields.

它不是使用风压，而是磁场。

The turbines' spinning blades cause a drop in air pressure, which can kill bats.

涡轮机旋转的刀片导致风压下降，可能杀死蝙蝠。