primary holes meaning in English
主燃孔
Examples
- Ore - controlling structure and deep - prediction of primary holes in the shiyingtan gold field , eastern tianshan
东天山石英滩金矿田控矿构造与原生晕深部预测 - In order to research the influences produced by sidetracking position , the primary hole deviation and azimuth of used wells on the primary section of the re - entry horizontal wells , it is necessary to consider the 3d trajectory design of the re - entry horizontal wells
为了考虑侧?点位置及老井的初始井斜、方位对侧?水平井起始段的影响，需要对侧?水平井进行三维轨迹设计考虑。 - Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages , outer diameters of the secondary swirl passages , vane angle of the primary and secondary swirler , the distance of the flare exit from throat etc ) on combustion performances are studied experimentally . the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes
在不同油气比下,不同的双级旋流器几何参数(例如:一级与二级旋流器出口内径d 、叶片安装角、二级旋流器出口外径d 、二级旋流器的喉道到出口截面的距离l和喉道前后的圆弧半径r以及主燃孔孔布局等)对单头部环形燃烧室的出口温度分布、燃烧效率、贫油熄火油气比以及污染物( co _ 2 、 co和nox )排放等燃烧性能的影响规律进行了研究。