keels的读音 keels中文意思

读音 
n. (船的)龙骨( keel的名词复数 )
v. 翻身,倾覆( keel的第三人称单数 )
keels 用法和例句
Tells you she 's hurting before she keels .
在她翻倒以前,会告诉你她很受伤。
As only a very general rule , most sailboats over 20-something feet have fixed keels .
作为一条通常规律,大部分20英尺以上的帆船使用固定龙骨。
Sailboats have many different types of fixed keels , such as full keels ( see photo ) and fin keels .
帆船有许多种不同类型的固定龙骨,例如全龙骨(见上图)及鳍板。
If you are shopping for a sailboat in this range , you should understand the differences between these fundamental types of keels .
若你是在这个尺寸范围内寻购帆船,那你应该学习了解一下龙骨的这些基本类型之间的差别。