涓€绱氬缓绛戝斧寤虹瓚鍔涘(xu茅)杓斿皫(d菐o)绮鹃伕(18)

銆€銆€2 .绲�(ji茅)榛炲钩琛＄殑鐗规畩鎯呮硜——闆舵】鐨勫垽鏂�

銆€銆€( 1 ) L 褰㈢祼(ji茅)榛�(鍦� 3 -49a ) 锛氭垚 L 褰㈠尟浜ょ殑鍏╂】绲�(ji茅)榛炰笂鑻ョ劇鑽疯級浣滅敤锛屽墖閫欏叐妗跨殕鐐洪浂妗裤€�

銆€銆€( 2 ) T 褰㈢祼(ji茅)榛�(鍦� 3 -49b ) 锛氭垚 T 褰㈠尟浜ょ殑涓夋】绲�(ji茅)榛炰笂鑻ョ劇鑽疯級浣滅敤锛屽墖闈炲叡绶氱殑涓€妗垮繀鐐洪浂妗�锛岃€屽叡绶氱殑鍏╂】鍏�(n猫i)鍔涚浉绛変笖姝ｈ矤铏熺浉鍚�(鍚岀偤鎷夊姏鎴栧鍔�)銆�

銆€銆€( 3 ) X 褰㈢祼(ji茅)榛�(鍦� 3 -49c ) 锛氭垚 X 褰㈠尟浜ょ殑鍥涙】绲�(ji茅)榛炰笂鑻ョ劇鑽疯級浣滅敤锛屽墖褰兼鍏辩窔鐨勫叐妗垮収(n猫i)鍔涚浉绛変笖姝ｈ矤铏熺浉鍚�(鍚岀偤鎷夊姏鎴栧鍔�)銆�

銆€銆€( 4 ) K 褰㈢祼(ji茅)榛�(鍦� 3 -49d ) 锛氭垚 K 褰㈠尟浜ょ殑鍥涙】绲�(ji茅)榛炰笂鑻ョ劇鑽疯級浣滅敤锛屽墖闈炲叡绶氱殑鍏╂】鍏�(n猫i)鍔涚浉绛変笖姝ｈ矤铏熺浉鍙�(涓€妗跨偤鎷夊姏鑰屽彟涓€妗跨偤澹撳姏)銆�

銆€銆€銆� 渚� 3 -19 銆戝垽鏂峰湒 3 -50(a)銆�(b)鎵€绀烘鏋朵腑鐨勯浂妗�銆�

銆€銆€銆� 瑙� 銆� ( l )鍦�(a)绲�(ji茅)妲�(g貌u)

銆€銆€鍏堣€冨療绲�(ji茅)榛� C 锛� D 锛� E 锛� I 锛� K 锛� L 銆傞€欎簺绲�(ji茅)榛炲潎鐐� T 褰㈢祼(ji茅)榛�锛屼笖娌掓湁鑽疯級浣滅敤锛屾晠妗夸欢 CG锛� DJ 锛� EH 锛� IG 锛� KH 锛� LF 鍧囩偤闆舵】銆�

銆€銆€鍐嶈€冨療绲�(ji茅)榛� G 鍜� H 銆傜敱浜庝氦浜庨€欏叐鍊嬬祼(ji茅)榛炰笂鐨勫叐璞庡悜閺堟】鍧囧凡鍒ゆ柗鐐洪浂妗�锛屾晠閫欏叐鍊嬬祼(ji茅)榛炵殑鍙楀姏涔熷凡鎴愮偤 T 褰㈢祼(ji茅)榛炵殑鎯呭舰锛岀敱浜庢矑鏈夎嵎杓変綔鐢�锛屾晠妗夸欢 AG 锛� BH 涔熺偤闆舵】銆傛暣鍊嬬祼(ji茅)妲�(g貌u)鍏辨湁 8 鏍归浂妗�锛屽鍦� 3 -50 (c)铏涚窔鎵€绀�銆�

銆€銆€( 2 )鍦�( b )绲�(ji茅)妲�(g貌u)鍏堣€冨療绲�(ji茅)榛炲垁銆傝┎绲�(ji茅)榛炵偤 K 褰㈢祼(ji茅)榛炰笖鐒¤嵎杓変綔鐢�锛屾晠妗夸欢 DE 鍜� DF 鐨勮桓鍔涙噳(y墨ng)澶у皬鐩哥瓑锛屾璨犺櫉鐩稿弽锛屽嵆锛�

銆€銆€NDE= -NDF

銆€銆€鍙︿竴鏂归潰锛屾敞鎰忓埌瑭茬祼(ji茅)妲�(g貌u)鐐哄皪绋辩祼(ji茅)妲�(g貌u)(鍥犳敮搴� A 铏曟按骞抽張妗夸笉鍙楀姏)锛屼笖浣滅敤鏈夊皪绋辫嵎杓夛紝鍥犳绲�(ji茅)妲�(g貌u)鐨勫収(n猫i)鍔涘繀鐒舵槸灏嶇ū鐨�銆傚叿楂斿埌妗夸欢 DE 鍜� DF 锛屾噳(y墨ng)鏈�

銆€銆€NDE= NDF

銆€銆€浜庢槸蹇呮湁 NDE= NDF=0锛屽嵆妗夸欢 DE 銆� DF 鐐洪浂妗�銆�

銆€銆€鍐嶈€冨療绲�(ji茅)榛�銆� E 鍜� F 锛岀敱浜� DE 銆� DF 宸插垽鏂风偤闆舵】锛屾晠妗夸欢 AE 銆� BF 涔熸槸闆舵】銆傛渶鍚庤€冨療绲�(ji茅)榛� A 鍜� B 锛屽洜 A 铏曟按骞虫敮搴ч張妗夸笉鍙楀姏锛屽洜姝ょ祼(ji茅)榛� A 銆� B 鍧囨垚鐐� L 褰㈢祼(ji茅)榛�锛屾】浠� AG 銆� BH 鍧囩偤闆舵】銆傞€欐ǎ锛屾暣鍊嬬祼(ji茅)妲�(g貌u)鍏辨湁 6 鏍归浂妗�(涓嶅寘鎷敮搴ч張妗�)锛屽鍦� 3 -50 ( d )铏涚窔鎵€绀�(瀵﹂殯涓�锛岀祼(ji茅)榛� A 銆� B 铏曠殑涓夋牴鏀骇閺堟】涔熺偤闆舵】)銆�

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