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2?￠ ?????÷2?·??úèY?°ê±??·???￡o￡¨12 7 ?ü￡?
μúò?2?·? êìá·??ìa￡?ê??ˉ?￠??àí??ìa?à1?×êá? ( 1 ?ü)
μú?t2?·? ?D??á??????ê1???μ?2???1üàí·?ê? ( 1 ?ü)
μúèy2?·? ?D???????ê1???μ??óòμ1üàí??×÷·?ê? ( 1 ?ü)
μú??2?·? μ?3???ê?ó??è??òaò?￡?2￠μ?3??á?? ( 2 ?ü)
μú??2?·? ±?òμéè????????μμ±àD′??àí ( 1 ?ü)
?à????′e±? ( 1 ?ü)
3?￠ 2??????×
1. 1ú?ò?-?3?ˉ?°?à??2ì×é. ?à1ú?????ê1???μ?1üàí·?ê??°??ê?. éìòμ?á??.2001￡?10￡o13-15
2. à?1?′o. ?????ê1?ó|á′1üàí??′???1üàíμ???ê?. ?óòμ?-??.2003￡?7￡o143-144
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?a òa I
Abstract II
μúò??? ?° ?? 1
1.1 ??ìaòaò? 1
1.2 ±????÷òa?úèY 2
μú?t?? ?????ê2???1üàí·?ê? 3
2.1 ?????ê?D1ú·￠?1???? 3
2.2 ?????ê?D1ú??×÷?￡ê? 3
2.2.1 1????-óa(chǎn)·??§ 3
2.2.2 1????ü11 4
2.2.3 1?????×÷?￡ê?: 4
2.3 ?ˉè¨ê?1üàí 5
2.3.1 ?ˉ?D?ˉ1üàíμ?1|?ü 5
2.3.2.?????ê?ˉ?D?ˉ1üàí?￡ê??°ìá 6
2.3.3 ?????ê?ˉ?D?ˉ1üàí?￡ê? 7
2.3.4 ?ˉè¨ê?1üàíó?μ? 9
2.3.5 ?ˉè¨ê?1üàí2?×? 10
2.4 D??á 11
μúèy?? ?????ê?óòμ1üàí·?ê? 12
3.1 ?????êμ??óòμ×é?ˉD?ê? 12
3.2 è?á|×ê?′1üàí 12
3.2.1 á?×?è?2? 12
3.2.2 ·￠?1è?2? 14
3.2.3 ?ü?éè?2? 14
3.3 éì?·1üàí 15
3.3.1éì?·μ?·?àà 15
3.3.22é1oá÷3ì 16
3.3.3D?éì?·?a·￠ó??í?ú?·ì?ì- 17
3.3.4 ×?óD?·??éì?·?a·￠ 17
3.4 ??á÷1üàí 18
3.4.1 ?¨á￠íêé?μ?éì?·???íì??μ 18
3.4.2 ?¨á￠μ?×óD??￠í¨D??μí3 19
3.5 ·???1üàí 20
3.5.1 ·???1üàíμ?×÷ó? 20
3.5.2 ?????êμ?·???1üàí1y3ì 21
3.6 ????1üàí 22
3.6.1 ?????êμ????????? 22
3.6.2 ??′?°ü?§3?êD?????a?aμ?à? 22
3.6.3 ×@@é±?áì?è?????a ?a ììê± 23
3.6.4 ?????êμ?è?á|×ê?′?????a?a è?oí 24
3.6.5 D??á 25
μú???? ?????êμ??è??òaò? 26
4.1 2???1üàí 26
4.1.1 ?ú×êá?ê??óòμ2???1üàí?D′??úμ??êìa 26
4.1.2ía×ê?óòμ???ú×êμ?ítD2 27
4.1.3?ˉè¨ê?2???1üàí???ú×êá?ê??óòμμ??è??òaò? 28
4.2 ?óòμ1üàí 33
4.2.1 òaí???á????-óa(chǎn)μè?è??μ?á÷í¨×é?ˉD?ê? 33
4.2.2 òa?ìD?í???éìòμà?ó?ía×êμ?1¤×÷ 33
4.2.3 òa??êóéì?·á÷í¨???-??·￠?1μ?′ù??×÷ó? 34
?á ?? 35
?? D? 36
2??????× 37




?a òa
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