船首柱与龙骨接合的角材的英文

bearding angle

• 船首:    stem; bow; backbon ...
• 与:    take part in; part ...
• 龙骨:    a bird's sternum f ...
• 接合:    joint; zygosis; ju ...
• 的:    4次方是 The fourth po ...
• 角材:    angle section