Rigid risers for floating production systems in deepwater field developments .

深水油田开发中浮动生产系统用的刚性立管的设计。

My family are all early risers .

我的家人都起得早。

All his family are early risers .

他的家人都早起床者.

My family are early risers .

我全家人都是早起的人。

This makes the spin faster and can twist the risers .

这造成旋转更快并且会扭转吊组绳。