secondary orifice的意思|示意

The increase of the angle between centerline of nozzle orifice and axis of secondary combustor can promote collision number, but the effect is small.

喷口中心线与补燃室轴线的角度增加对碰撞有催进作用，但影响效果相对较小；

Because of the dual-orifice design, there is a preset controlled pressure differential for the secondary steam system, while maximum pressure differential is available to discharge the condensate.

由于采用了双阀孔结构设计，在最大压差下排放凝结水的同时，还有一个为二次蒸汽系统设计的预设压差系统在工作。