̾ 6(ŷ)° ¼.
3 2 15 ̾ƴ Ϻ 5% 6500 ŷǰ ִ. ̾ ְ 23 5820 ϸ 52 , ֱ ݵϴ ̴. ̾ ְ 帧 ʾҴ. ȸ ְ 27% ϶ߴ. Ⱓ ڽ · 1% 28%P ʰ ϶ߴ.
̾ƴ 3 ռ̾Ƹ 2004 ƴ. 1 ̱ ̾Ƹ̳뺣̼(DI), 2 ư Ʈ6(E6). ̾Ƹ ܴ Ǿ Դ. õ ̾Ƹ پ , ȭ Ư ұϰ Ұġ ű ַ ƴ.
1950 ̱ ʷ ϷƮ(GE) ΰ ̾Ƹ带 ռϴ , ȭϸ鼭 ο ° ƴ. ռ ̾Ƹ ó ̾Ƹ , ݼ, ڵ, о߿ θ ̴ ʼ簡 ƴ.
̾ ַ ǰ ̾Ƹ (DG, Diamond Grit), ̾Ƹ ǰ(CTM, Cutting Tool Materials) ü 79% Ѵ. ǰ ũƮ, ƽƮ, , . Ӹ ƴ϶ ż, ε δ. 帱 ǰ(HM, Hard Metal) Ѵ. ǰ ʰб, μȸα Ÿ 帱 ̿ȴ.
̾ 1б 7% 228 ߴ. ǰ Ⱓ 24% 32, ͵ 9.5% پ 27 ӹ.
̾ƴ о õ̴. ȸ о Ư ǰ ȭ Ⱓ ɸ ߴ. ̾Ƹ Ȯ ϰ ־ ǰ ߿ ѷ ̶ .
ֽMRI м 1%
ڰ ֽMRI м ̾ ŷµ 25 21 ü 22( 1%) ߴ.
ֿ ϸ 繫 ̴. Һ ͼ ɼ .
ֽMRI ڿ ü ǽð м . MRI ͼ强 繫 Ӹ ƴ϶ Ӽ ִ ° ְ ر Բ ǴѴ.
ֽMRI 25 ְ ̸ 췮 ̴. 5 ΰ · Ÿ.
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