中繼器可以設置四個檔次, 分別為 1/10秒, 2/10秒, 3/10秒, 4/10秒
如果你串聯兩個4檔和一個2檔的中繼器, 2*4/10+2/10=1秒
參考 WIKI ...
http://www.minecraftwiki.net/wiki/Redstone_Repeater
By right-clicking on the repeater, you can set its delay from one to four tenths of a second. Longer delays can be made with multiple repeaters; for example, two repeaters set to '4' and one to '2' will give a 1 second delay.
