Okinawa Commemorative National Govemment Park
'Roukoku' means "water clock". A water tank was positioned in the turret atop the gate, and the volume of dripping water was used to measure time. Together with the sun-dial located in the square just past the gate, the water was used to tell the time. which was announced by striking a drum.
The gate was also called 'Kagoise-ujo,' or palanquin-boarding gate, because seniorcourt offcials arriving at Shurijo Castle would alight from their palanquins here out of re-spect for the King.
Roukokumon was first built around the 15th Century, and removed in the early Showa period when it became too old for use. It was restored in 1992.
沙漏是水时钟在中国的手段。 在门上建立了塔中在水箱 （水钟） 测量时间。 方形大门口也有一个日晷，shirasemashita ︰ 通过两个鼓测量时间。
寺是在 15 世纪左右。 删除的内容在昭和时代前期因衰老在 1992 年恢复 （0/1992 年）。