(bio)}ڌW(xu)C4D
C4DϢ C4DӖ(xn)W(xu)УǺһҌ(zhun)I(y)Ӗ(xn)C4DČ(sh)(zhn)Ӗ(xn)nj(zhun)I(y)Ӗ(xn)C4Dēu@֪C4DӖ(xn)C(j)(gu)Ӗ(xn)֪ƷC4DӖ(xn)W(xu)УYۺȫ(gu)оO(sh)зУW(xu)Уgӭļ롣
ʮO(sh)Ӌ(j)(zhun)I(y)Ӗ(xn)C4DӖ(xn)W(xu)У(zhun)I(y)B(yng)O(sh)Ӌ(j)ʮ꣬ɽ(jng)(yn)SO(sh)Ӌ(j)һ(du)һְ(sh)(zhn)̌W(xu)Пo(w)A(ch)Ɉ(bo)W(xu)(x)(sh)(zhn)Ӗ(xn)+(qun)C(sh)+] C4DӖ(xn)W(xu)Уnj(zhun)I(y)C4DӖ(xn)W(xu)Уڵ^(q)λں,I(yng)a(chn)Ʒ(w)NC4DӖ(xn)
C4DӖ(xn)W(xu)УֲӢ^(q),A^(q),ɽ^(q),m^(q)ȵ,ǺИOӰC4DӖ(xn)C(j)(gu)
C4DӖ(xn)W(xu)Уһ(li)O(sh)Ӌ(j)һwXӖ(xn)(li)W(xu)У_(ki)O(sh)ƽO(sh)Ӌ(j)Ӗ(xn)҃(ni)O(sh)Ӌ(j)Ӗ(xn)W(wng)(y)O(sh)Ӌ(j)Ӗ(xn)O(sh)Ӌ(j)Ӗ(xn)I(y)a(chn)ƷO(sh)Ӌ(j)Ӗ(xn)cadӖ(xn)photoshopӖ(xn)Ȍ(zhun)I(y)
ڶ_(ki)l(f)ĻA(ch)피ć(gu)(ni)CAD_(ki)l(f)Ҳu̽mЇ(gu)l(f)չģʽCADӷχ(gu)(ni)I(y)ʹõCADa(chn)ƷĿ_(ki)l(f)õCADǞȫṩ(yu)CADg(sh)
҂ă(yu)(sh)
1̌W(xu)(ni)ݏVƽԔD컨D·D
2漰V֪R(sh)ȫɽ҃(ni)@C(j)еȡ
3öģLD߹Ч
ڌW(xu)C4D
O(sh)Ӌ(j)Ӗ(xn)W(xu)У13ꌣ(zhun)עƽO(sh)Ӌ(j)Ӗ(xn)ƽVO(sh)Ӌ(j)Ӗ(xn)bO(sh)Ӌ(j)Ӗ(xn),ԌԌ_(ki)bƏV\(yn)I(yng),xƽԭW(xu)У.60ҺI(y)W(xu)ᘌ(du)W(xu)(zhun)I(y)Ō(du)ڹ
Уһ܃(ni)W(xu)(hu)߿ԸˌW(xu)M(fi)
O(sh)Ӌ(j)ߺ_(ki)ʼʹӋ(j)C(j)M(jn)Ӌ(j)㡣J(rn)飨._ɪmIvan Sutherland1963ʡW(xu)Ժ_(ki)l(f)Sketchpad(hu)壩һ(g)D(zhun)c(din)SKETCHPADͻSO(sh)Ӌ(j)ÈDηʽӋ(j)C(j)O(sh)Ӌ(j)һ֦PꎘO侀ĻLƵӋ(j)C(j)(sh)H@LjDλÑ(h)ԭ@NǬF(xin)CADɻȱ
ڌW(xu)C4DڌW(xu)C4D
I(y)خa(chn)̡bb˾VI(y)λSDO(sh)Ӌ(j)҃(ni)bO(sh)Ӌ(j)ԼЧDO(sh)Ӌ(j)^O(sh)Ӌ(j)CADC(j)еDO(sh)Ӌ(j)SDO(sh)Ӌ(j).
ڌW(xu)C4DﺣڌW(xu)C4DﺣڌW(xu)C4DڌW(xu)C4D״νo?gu)?li)CADܛļCADf(shu)ڽИI(y)Į(hu)DߣȻ҂?c)ʹõ^(gu)߀Ǖ(hu)һЩ(hu)Ć(wn)}(wn)}ϣo?gu)?li)ļɻy
C4DӖ(xn)W(xu)УɾC4DӖ(xn)֮(mng)W(xu)C4D́(li)C4DӖ(xn)W(xu)У
Ӗ(xn)ԃ(xn)ԒM(fi)ԃ(xn)
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