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8. 設 ，其中 i = ，則 z 之主幅角為何？ (A) (B) (C) (D)
問題詳情
8. 設
，其中 i =
，則 z 之主幅角為何？
(A)
(B)
(C)
(D)
參考答案
上一篇 :
201.違反道路交通管理事件,受處分人未依規定聲明異議,亦不依裁決辦理者,下列執行規定何者為非?(A)罰鍰不繳者,依法移送強制執行(B)經處分吊銷駕駛執照者,逕行註銷(C)經處分廢止執業登記者,其執業
下一篇 :
15. 如圖(七)所示，衝壓機在鋼板上做圓孔衝壓加工，假設衝壓機的衝頭直徑 d=20mm、鋼板厚度 t = 3mm。若所需之衝擊力 P= 30 π kN，則鋼板的平均剪應力 τ 及衝頭的平均壓應力 σ
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