secondary air

常见例句

This article introduces the structure, operating principle and key matching points of secondary air valve.
本文阐述了二次空气阀的结构、工作原理和匹配要点。
The experimental results indicate that secondary air can accelerate volatile combustion in dilute phase zone and raise the temperature remarkably.
试验结果表明：二次风可以促进挥发分在稀相区的燃烧，对提升稀相区的温度作用明显；
The experimental results indicate that secondary air can accelerate volatile combustion in dilute phase zone and raise temperature here remarkably.
实验结果表明：二次风可以促进挥发分在稀相区的燃烧，对提升稀相区的温度作用明显；

It is largely because of the rise of low-cost, no-frills carriers, which often fly between secondary airports, that air travel between European countries has recovered to about the same level that it was in March 2001, according to the World Tourism Organisation.
ECONOMIST: Back to old tricks The