Next the SEALs needed to destroy the damaged Black Hawk.
接下来，海豹需要摧毁损坏了的黑鹰。
The prior shaft head seals have the defects of easily broken, damaged and worn dynamic and static contact surface.
现有轴头密封动、静接触面易碎、易损，不耐磨。
The prior shaft head seals have the defects of easily broken, damaged and worn dynamic and static contact surface.
现有轴头密封动、静接触面易碎、易损，不耐磨。
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