To begin, you will need five basic items: board, sail, mast, boom (2) and mast base.
开始的时候你需要最基本的五样东西：滑板、风帆、面罩、帆下桁和桅杆基座。
Place your front foot beside or just behind the mast base, pointed toward the nose of the board.
前脚放在侧面，或是放在桅杆基座的后面，脚尖指向滑板顶端。
The preassembled headboard has a brown wood base with decorative carvings, three open storage compartments, a storage bin and a mast.
预装的床头柜有一个褐色的木制底座，底座上有雕刻的装饰花纹，三个开放式存储格，一个储物箱和一个桅杆。
It is especially pointed out that ignoring the effect of coupling the base frame and the foundation with the mast will lead to errors that are not acceptable in engineering.
强调指出，在这种振动分析中忽略底座与地基对井架振动的耦合作用，将导致工程上不允许的误差。
It is especially pointed out that ignoring the effect of coupling the base frame and the foundation with the mast will lead to errors that are not acceptable in engineering.
强调指出，在这种振动分析中忽略底座与地基对井架振动的耦合作用，将导致工程上不允许的误差。
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