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tropopause

/ˈtroʊpoʊpɔːz/ /ˈtrɒpəpɔːz/

Meanings
noun

对流层顶

The zone of transition between the troposphere and the stratosphere (approximately 13 kilometers). The tropopause normally occurs at an altitude of between 25,000 and 45,000 feet in polar and temperate zones. It occurs at 55,000 feet in the tropics.

Examples :

"Airplanes often experience turbulence when passing through the tropopause, the boundary between the troposphere and the stratosphere. "
飞机在穿越对流层顶，也就是对流层和平流层之间的边界时，经常会遇到乱流。
weather geography environment science

Related Words

Illustration approximately

approximately adverb

/əˈpɹɒk.sɪ.mət.li/ /əˈpɹɑk.sɪ.mət.li/

大约，大致，左右。

"...approximately 60 beats per minute."

...大约每分钟60次。

Illustration stratosphere

stratosphere noun

/ˈstrætəsˌfɪr/ /ˈstrætoʊˌsfɪr/

成层圈, 平流层

"The geologist studied the stratosphere exposed in the road cut, carefully examining the layers of sediment for clues about the region's history. "

地质学家研究了路堑中裸露的地层，仔细检查沉积层，寻找该地区历史的线索。(Dìzhì xuéjiā yánjiūle lùqiàn zhōng lùlù de dìcéng, zǐxì jiǎnchá chénjī céng, xúnzhǎo gāi dìqū lìshǐ de xiànsuǒ.)

Illustration boundary

boundary noun

/ˈbaʊndɹi/ /ˈbaʊndəɹi/

边界，分界线

"The fence marks the boundary between the park and my neighbor's yard. "

这道栅栏标明了公园和我邻居家院子的边界。

Illustration airplanes

airplanes noun

/ˈɛərpleɪnz/ /ˈeərpleɪnz/

飞机， 飞机。

"Airplanes fly people across countries for vacations and business trips. "

飞机载着人们飞越国界，进行度假和商务旅行。

Illustration experience

experience noun

/ɪkˈspɪə.ɹɪəns/ /ɪkˈspɪɹ.i.əns/

经验, 阅历

"It was an experience he would not soon forget."

那是一段他永远难忘的经历。

Illustration turbulence

turbulence noun

/ˈtɜːrbjələns/ /ˈtɜːbjʊləns/

动荡，骚乱，紊乱。

"The airplane experienced some turbulence on the flight, causing a few passengers to feel uneasy. "

飞机在飞行途中遇到了一些气流颠簸，导致一些乘客感到不舒服。

Illustration temperate

temperate verb

/ˈtɛmpəɹət/

使温和, 缓和

"The teacher tried to temperate the students' excitement before the field trip so they would listen to the safety instructions. "

老师试图缓和学生们在校外旅行前的兴奋情绪，以便他们能听取安全指示。

Illustration altitude

altitude noun

/ˈælt.ɪˌtjuːd/ /ˈælt.ɪˌtuːd/

海拔，高度

"As the altitude increases, the temperature gets lower, so remember to bring warm clothes to the mountains."

随着海拔升高，气温会降低，所以记得带上保暖的衣服去山上。

Illustration troposphere

troposphere noun

/ˈtrɒpəˌsfɪər/ /ˈtroʊpəˌsfɪər/

对流层

"Planes typically fly in the lower part of the troposphere, where the weather changes rapidly. "

飞机通常在对流层的较低部分飞行，因为那里的天气变化很快。

Illustration transition

transition noun

/tɹænˈzɪʃən/

转变，过渡。

"The transition from elementary school to middle school was difficult for many students. "

从小学到中学的过渡对很多学生来说都比较困难。

Illustration kilometers

kilometers noun

/kɪˈlɑːmɪtərz/ /kəˈlɑːmɪtərz/ /ˈkɪləˌmiːtərz/ /kəˈlɒmɪtərz/

千米，公里

"The school is two kilometers from my house, so I usually take the bus. "

学校离我家有两公里，所以我通常坐公交车。

Illustration normally

normally adverb

/ˈnɔːrməli/ /ˈnɔrməli/

通常，一般，一般来说

"My brother normally gets up early for school. "

通常，我弟弟为了上学，一般会很早起床。