subdorsal keels [昆] 侧背蜡管
Ernest Keels 标签
Keels J 名称
Keels Virgie 名称
Swift Keels 轻量龙骨
Keels Ernest 名称
Virgie Keels 标签
The experimental research of the formwork, keel and structure are carried out separately.
分别对模网、龙骨及结构体进行实验研究。
参考来源 - 新型组合结构保温板的研制·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-COUNT The keel of a boat is the long, specially shaped piece of wood or steel along the bottom of it. (船的) 龙骨
The keel hit the rock first.
船龙骨先撞到岩石。
N red ochre stain used for marking sheep, timber, etc (用于标记羊、木材等的)红印色
PHRASE If you say that someone or something is on an even keel, you mean that they are working or progressing smoothly and steadily, without any sudden changes. 平稳地
Jason had helped him out with a series of loans, until he could get back on an even keel.
詹森给他提供了一连串贷款帮他摆脱困境，直到他能够重新稳定下来。
The caudal peduncle is very slender and includes three sets of keels.
尾端的花梗很细，包括三组龙骨。
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。
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