flatbottom การใช้

• This class of sailing vessel was designed as an economical, flatbottom, three masted schooner; its operation required only a small crew.
• The 1940s 75 lb flatbottom rail placed on light weight concrete sleepers would be taken out and replaced with 1st generation steel sleepers bedded in ash ballast.
• The only title that broke the pattern was his final creation, " J . C . Flatbottom ", which may have had an autobiographical character.
• Three of which, used in the first generation ( " flatbottom " ), second generation, and third generation ( this style is still used today for Cooper luminaires ), were manufactured by Holophane, the other design, used for the second generation Silverliner, was manufactured by Corning Glass ."