The design of cowllip is of great importance to the inlet performance at yaw, therefore, further improvement of the inlet performance will rely on the lip shapes of the cowl chosen.
唇口的设计对进气道的侧滑角性能有着重要影响，进气道性能的进一步提高应考虑唇口设计的改进。
2
A cowl (48) surrounds the lip with clearance when the shaft rotates.