作者查詢 / urocissa
作者 urocissa 在 PTT [ Aviation ] 看板的留言(推文), 共141則
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17F推:大家也要注意一下聽力阿,聽力閾值500~2000hz要<30db02/28 03:05
18F→:最好是500~8000hz都<1002/28 03:06
25F推:重點在500,1000,2000hz阿,高頻老了容易退化03/01 03:36
26F推:http://www.youtube.com/watch?v=h5l4Rt4Ol7M03/01 03:41
27F→:http://www.noiseaddicts.com/2010/10/hearing-loss-test03/01 03:41
10F→:http://www.casiaero.com/mainProducts.php?CategoryID=A07/01 01:54
31F推:還有訓練費加利息阿11/13 20:39
38F推:音速不是定值阿~跟溫度有關05/29 01:57
4F推:有人要sr-71的嗎XD06/11 15:33
55F推:樓上有sr-71的~06/11 19:38
65F推:黑鳥的檔案有100多mb吧~是用掃圖的06/11 21:41
28F推:A大說的可能是longer path,跟newtonian explanation吧06/04 14:27
29F→:http://science.howstuffworks.com/airplane5.htm06/04 14:28
75F推:難得看大家討論的這摸熱烈阿^^06/04 23:39