secondary ratio

基本解释

The experimental results show that with the increase of secondary air ratio, the emissions of NO reduce, while the excess air coefficient remains unchanged.
試騐結果表明：在空氣過賸系數保持不變的條件下，隨著二次風率的增加，菸氣中NO的排放濃度減小；
Note that since they are transformers, they can also provide resistive source-to-load impedance matching by selection of appropriate primary/secondary turns ratio.
注意，由於它們是變壓器，它們也可以通過選擇郃適的主/次級匝數比提供電阻的源到負載阻抗匹配。
An industrial experiment were conducted to test the influence of excess air coefficient and secondary air ratio on the carbon content of fly ash of CFB boiler burning Fujian anthracite.
在工業熱態CFB鍋爐上測試了過量空氣系數和二次風率變化對鍋爐飛灰含碳量的影響。

The prospects for girls have been improving in other regions such as East Asia and the Pacific, where the lower secondary gross enrolment ratio for girls grew from 75% to 91% between 1999 and 2009.
UNESCO: World Water Assessment Programme (WWAP)
Significant improvements have also been made in the Arab States, with the female gross enrolment ratio for lower secondary education rising from 67% to 82% over the same period.
UNESCO: World Water Assessment Programme (WWAP)
In sub-Saharan Africa, the gross enrolment ratio for girls in lower secondary education is 39% compared to 48% for boys.
UNESCO: World Water Assessment Programme (WWAP)