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。
As only a very general rule, most sailboats over 20-something feet have fixed keels.
后来，洛维洛借钱赚钱的方法又上了一个新台阶：他组织人设计了一条船，在安装龙骨之前，他便找到一家运输公司，说服该公司预定包租这条八字还没有一撇的船。
Later on, Ludwig carried his business to a new stage of development: He got another tanker designed, Before the keel was even laid, a common carrier was persuaded to charter it after its completion.
型保护条：采用PVC制成，紧扣在专用龙骨上以增加与天花软膜的接触面，保护并延长产品使用时间。
U type protection: made of PVC, is closely linked to the special keel to increase the contact surface with the smallpox soft film and extended product protection, the use of time.
间接原材料包括铝合金龙骨或PVC龙骨、扣边条、固定件、粘结剂等，相对直接原材料费用稍低。
Indirect materials including Aluminum Alloy keel or PVC keel, buckle strips, fasteners, adhesives, the relative direct cost of raw materials is slightly lower.
经营产品主要有各种规格和等级的家具刨光套材，烘干规格料、板材、地板龙骨、吊顶龙骨、白松条等。
Our main products are all grade of S4S furniture timber kit, KD timber, Flooring Keels, Ceiling Keels, strip and so on.
经营产品主要有各种规格和等级的家具刨光套材，烘干规格料、板材、地板龙骨、吊顶龙骨、白松条等。
Our main products are all grade of S4S furniture timber kit, KD timber, Flooring Keels, Ceiling Keels, strip and so on.
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