| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a doorway for a wind turbine tower. <P>SOLUTION: The doorway for a wind turbine tower can generally include a doorway frame having an approximately rectangular shape and inside and outside surfaces. An opening can be formed between the inside and outside surfaces, such that accessibility to the inside of the tower is achieved through the opening. At least one of the inside and outside surfaces can have an approximately flat surface along at least a part of the width thereof. <P>COPYRIGHT: (C)2012,JPO&INPIT |
