ֱ . 2б 275 Ⱓ 4% ߴ. 13 19% پ, 9 27% ߴ. ȸ ó ǰ, Ȳ ǰ Ǹŷ پ ̴. 3б ǥ ʾҴ.
1991 2002 ü. Ͱ ַ ǰ, 99% Ϳ ǰ ø ִ. ʹ Ϲ ũⰡ 35mm ̸, 100W ̸ ´´.
ʹ (AC), (DC), (Steppig)ͷ . ACʹ , , , ȴ. DCʹ ð, ī, ̾, ȴ. ʹ Է ȣ ŭ ̴ ͷ κ, ϰ ȴ.
, ȸ Ϳ ڽ Ϳ Ưȭ ִ. ʹ ſ ϰų ø ִ ϴ ʹ. ڵȭ ýۿ ̾ Ʈ, 繫 ܱ, , м, Ѵ.
ݱ⺸ 1994 Ϻ ü ϴ ǥ ȭ , ü 52% ϰ ִ 1 ü̴.
ſڻ ֿ ַ 2б 7.2% ϰ ִ.
ֽMRI м , 20%
ڰ ֽMRI м ŷµ 25 15 ü 340( 20%) ߴ.
߰ ϸ 繫 ̴. Һ ͼ ɼ .
̼ 1 Ҵ. ְ(PER) 15.2 ֱ 5 14.4 ݿƴ.
ֽ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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