But on the other hand, the use of over-fire air reduces the combustion efficiency of pulverized coal.

但另一方面，燃尽风的应用将导致煤粉燃烧效率下降。

youdao

Last minute our diver was still swimming in the Pacific with flippers, and the next minute he was doing a breaststroke in a fire bucket 300 feet in the air.

前一分钟我们的潜水员还在太平洋里用脚蹼游水，下一分钟他就在300英尺高空的一个救火水桶里做蛙泳了。

youdao

Sun Wukong's somersault cloud and Nezha's Wind Fire Wheels are products of fantasy bearing humanity's dream to fly through the air.

孙悟空的筋斗云，哪吒的风火轮，都是神奇想象的产物，寄寓了人类渴求飞速行进的美好愿望。

youdao

Fire from the natural gas well shot about one hundred forty meters into the air.

VOA: special.2009.03.22

He's got four essences: Earth, fire, water, air.

他认为世界有四大元素，土，火，水，气。

麻省理工公开课 - 固态化学导论课程节选

"As the engagement went on and the enemy continued with strong fire, air support was called for."

VOA: standard.2009.09.12

Plato believed that the first four corresponded to the elements of which the Greeks thought the material world was composed: fire, air, water and earth.

ECONOMIST: The shape of the universe

But the staff will always fire into the air first, to scare the bear away.

NEWYORKER: Stone Mattress

Despite coming under fire from the air, sea and land, they held out against a force of more than 3, 000 Germans for seven days.

BBC: Poland remembers World War start