作者查詢 / heatsink
作者 heatsink 在 PTT [ Examination ] 看板的留言(推文), 共100則
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3F推: 名單還沒送過來04/08 21:02
2F→: 合理。半年都還在保固內呢。04/05 21:40
63F推: 業界拼高薪,但是有體力撐幾年?最後還是要回歸正常,04/02 12:37
64F→: 細水長流04/02 12:37
10F推: 我覺得郵局壽險商品跟其他保險公司比起來,沒什麼誘因03/29 13:14
37F推: 你是說期中考讀不下書嗎?別擔心,掰一掰就過了03/28 12:21
7F推: 沒有機會,因為只缺黑手03/27 22:00
1F推: 901 你已經把圖畫出來了,以支點作力矩,F力臂就是30mm03/27 20:22
2F→: N逆時針,F逆時針,P順時針03/27 20:24
3F推: 688先求出輪系值e=1/16,代表主動輪轉1圈,從動輪轉1/16圈03/27 20:28
5F→: 從動輪1/16圈=3.14x320x1/16=62.8(cm)03/27 20:44
6F→: 抱歉,不大懂意思,你說的f是指滾輪轉向還是摩擦力方向?03/27 20:47
7F推: 698 用V=pixDxN ==> Va=3.14xDaxNa , Vb=3.14xDbxNb03/27 20:50
8F推: 645 (Nr-Na)/(Ns-Na)=-(72/108),Nr,Na為已知,Ns即為解03/27 21:01
9F→: 式子右側的負號代表轉向與主動輪Ns相反03/27 21:02
10F→: 抱歉...我打反了,上面更正一下:Ns,Na為已知,Nr為解03/27 21:04
11F推: 626 它的圖畫錯了;A與B嚙合,C與D嚙合,才能得到正解03/27 21:15
12F推: 559 主動軸轉速平方=從動輪N3的平方=N1xN503/27 21:20
13F→: 200^2=100xN1=N3^2 , 求得N1=400rpm , N3=200rpm03/27 21:22
17F推: http://0rz.tw/i4lh0 這樣看OK嗎?@@03/27 21:46
19F推: http://goo.gl/wqhG5E 如果長這樣就是順時針~03/27 21:53
16F推: 161沒那麼複雜,單純考你定滑輪不省力,動滑輪省力50%這03/26 13:13
17F→: 樣而已03/26 13:13
6F推: 如果只是共同科目,沒時間國文直接讀解題一本通就好了03/26 11:43
8F推: 有,睹爛要人留下來做事又不給報加班的主管03/24 23:35