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ື೯ॡࣖूʕᏨীf͉ືਗ਼ਖ਼
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R&D
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R&D
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R&D
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R&D
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؈
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Оᓒፅඎdν
Bernstein and Nadiri
1988
ʱؓ৷߅Ҧପุʘ
R&D
ت
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؈
ʿ
R&D
ٝᗆʘʝᅂᚤdʺᘩ
ن
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Liu et al.
2010
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R&D
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Chen et al.
2010
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1996
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؈
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Chyi et al.
2012
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R&D
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f
Chen et al.
2013
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R&D
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؈
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ᅀਠ͊Ըٙ
R&D
ӔഄึϞОᅂᚤfʕɽኪ٫
Zhang and Liu
2007
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ܝ
ᗫᑌٙ
R&D
ٝᗆٙෂરΤԸʱؓ
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