secondary air

常見例句

This article introduces the structure, operating principle and key matching points of secondary air valve.
本文闡述了二次空氣閥的結構、工作原理和匹配要點。
The experimental results indicate that secondary air can accelerate volatile combustion in dilute phase zone and raise the temperature remarkably.
試驗結果表明：二次風可以促進揮發(fā)分在稀相區(qū)的燃燒，對提升稀相區(qū)的溫度作用明顯；
The experimental results indicate that secondary air can accelerate volatile combustion in dilute phase zone and raise temperature here remarkably.
實驗結果表明：二次風可以促進揮發(fā)分在稀相區(qū)的燃燒，對提升稀相區(qū)的溫度作用明顯；

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