keelson angle.
内龙骨角钢

Palea keels pilose, apex narrow or emarginate.
具柔毛的内稃龙骨, 顶狭窄的或微缺。

Palea much smaller than lemma, keels ciliate, apex exceeding keels.
内稃小于外稃，纤毛的龙骨的非常，顶超过龙骨。

If he keels over backwards, he loses
如果他向后倒下，就失败。

Most tunas and billfishes have a series of keels and finlets near the tail.
大多数金鱼和长嘴鱼的尾巴附近会长有一串脊骨和小鳍。

However while others look to their bottom lines, crews are staying focused on their keels, on the weather, on the waves, and on their skills ; for it is these things matter as well.
就在其他人关注他们的利润时，各国帆船队的队员们还在集中精力，改进帆船龙骨，观察天气与海浪变化，进一步提高他们的比赛技巧。

Gutters or channels on each side of a ships keelson that drain bilge water into the pump well.
污水道, 通水孔船底龙骨两侧用来排污水的水槽或水道

Palea almost as long as lemma, keels ciliolate or glabrous.
几乎的内稃倍于外稃, 龙骨具短缘毛的或无毛。

The lugs ensure the connecting with the curtain keels.
挂耳保证与幕墙龙骨的联接。

In addition to the prominent vertebral keel, two broken lateral keels may be evident along the pleural scutes.
除了明显突出的脊棱, 沿著肋盾还有两条断续的侧棱。

Hell probably be selling those Iguana Bits of his till he keels over dead.
如果他还没有死翘翘，他很可能在卖他的蜥蜴串。