secondary ratio

基本解釋

The experimental results show that with the increase of secondary air ratio, the emissions of NO reduce, while the excess air coefficient remains unchanged.
試驗結(jié)果表明：在空氣過剩系數(shù)保持不變的條件下，隨著二次風(fēng)率的增加，煙氣中NO的排放濃度減??；
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，由于它們是變壓器，它們也可以通過選擇合適的主/次級匝數(shù)比提供電阻的源到負(fù)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(yè)熱態(tài)CFB鍋爐上測試了過量空氣系數(shù)和二次風(fēng)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)