ID PW
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ÀÛ¼ºÀÚ Uploader : icepack ÀÛ¼ºÀÏ Upload Date: 2019-03-08º¯°æÀÏ Update Date: 2019-03-08Á¶È¸¼ö View : 1299
d=D/2 ÀÏ ¶§´Â, Gy = (1/2)*(D^3 - (D/2)^3)/(D^2 - (D/2)^2) = (1/2)*(7/8)/(3/4)*D = (7/12)*D
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