In the case of installations without active yaw systems, further rotation of the nacelle shall be prevented after the maximum acceptable degree of twisting (see Section 2.3.2.11.3) has been reached.

• 在没有安装有效偏航系统情况下，在达到最大可接受扭曲度（见第2,3,2,11,3节）后，应防止机舱进行更大程度的转动。