|
鍙嬫儏鎻愮ず锛氭湰绔欐彁渚涘叏鍦�400澶氭墍楂樼瓑闄㈡牎鎷涙敹纰╁＋銆佸崥澹爺绌剁敓鍏ュ(xu茅)鑰冭│姝峰勾鑰冪爺鐪熼銆佽€冨崥鐪熼銆佺瓟妗�锛岄儴鍒嗗(xu茅)鏍℃洿鏂拌嚦2012骞�锛�2013骞�锛涘潎鎻愪緵鏀惰不涓嬭級銆� 涓嬭級娴佺▼锛� 鑰冪爺鐪熼 榛炴搳鈥�鑰冪爺瑭﹀嵎鈥濃€濅笅杓�; 鑰冨崥鐪熼 榛炴搳鈥�鑰冨崥瑭﹀嵎搴�鈥� 涓嬭級
803
鑿崡鐞嗗伐澶у(xu茅)
2010 骞存敾璁€纰╁＋瀛�(xu茅)浣嶇爺绌剁敓鍏ュ(xu茅)鑰冭│瑭﹀嵎
锛堣珛鍦ㄧ瓟椤岀礄涓婂仛绛�锛岃│鍗蜂笂鍋氱瓟鐒℃晥锛岃│鍚庢湰鍗峰繀闋堣垏绛旈绱欎竴鍚屼氦鍥烇級
绉戠洰鍚嶇ū锛氱┖闁撹В鏋愬咕浣�
閬╃敤灏堟キ(y猫)锛氭姊拌ō(sh猫)瑷堝強鐞嗚珫
鍏� 2 闋�
绗� 1 闋�
1锛庝笁闈為浂鍚戦噺 , ,a b c
r v v
绛夐暦涓斿叐鍏╁瀭鐩�锛屾眰璀� , ,b c a b c+ +
rv v v v v
a 鑸� 鎵€澶剧殑瑙掔浉绛夈€�(10
鍒�)
2 锛� 宸� 鐭� 21,,, mmba
vvvv
鐐� 鍥� 鍊� 鍏� 闈� 鍚� 閲� 锛� 涓� 21 mm
vv
鑸� 涓� 鍏� 绶� 锛� 濡� 鏋�
ii mbma
vvvv
?=? )2,1( =i 锛岃瓑鏄庯細 ba
vv
= 銆� (15 鍒�)
3锛庢眰鐩寸窔 L锛�
3
1
1
2
5
2 +
=
?
=
+ zyx
鍦ㄥ钩闈� 08243: =?++螤 zyx 涓婄殑鎶曞奖鐩寸窔鐨�
鏂圭▼銆�(15 鍒�)
4锛庢眰鍚� y 杌稿苟鍜岄粸 )0,1,1(),3,7,2( ?BA 绛夎窛闆㈢殑骞抽潰鏂圭▼銆�(20 鍒�)
5锛庢眰鐩寸窔
1
4
3
5
7
1
:
?
=
?
=
? zyx
l 绻炵洿绶� 鏃嬭綁(zhu菐n)涓€鍛ㄦ墍鐢熸垚鐨勬洸闈㈡柟
绋嬨€�(20 鍒�)
?
?
?
=
=
3
2
y
x
6 锛� 姹� 閬� 榛� ( 3,0,1)A ? 涓� 骞� 琛� 浜� 骞� 闈� 1
:3 4 5 0x y z? ? + =鈭� 锛� 鍙� 鑸� 鐩� 绶�
1
1 1
:
2 1 1
x y z
L
? +
= =
?
鐩镐氦鐨勭洿绶氭柟绋嬨€�(20 鍒�)
7锛庤│姹傚柈钁夐洐鏇查潰
2
2 2
1
4 9 16
yx z+ ? = 涓婇亷瀹氶粸 鐨勬瘝绶氭柟绋�銆�(20 鍒�)(2,3,4)
8. 姹傝垏瀹氱洿绶�
1
x y z
m n
= = 骞宠涓旇垏瀹氬湏 2 2 2 2
x y z a+ + = 锛� 0z = 鐩镐氦鐨勫嫊鐩寸窔
鎵€鐢�(ch菐n)鐢熺殑鏇查潰鏂圭▼銆�(15 鍒�)
鍏嶈铂(z茅)鑱叉槑锛氭湰鏂囩郴杞�(zhu菐n)杓夎嚜缍�(w菐ng)绲�(lu貌)锛屽鏈変镜鐘�锛岃珛鑱�(li谩n)绯绘垜鍊戠珛鍗冲埅闄わ紝鍙︼細鏈枃鍍呬唬琛ㄤ綔鑰呭€嬩汉瑙€榛�锛岃垏鏈恫(w菐ng)绔欑劇闂�(gu膩n)銆傚叾鍘熷壍(chu脿ng)鎬т互鍙婃枃涓櫝杩版枃瀛楀拰鍏�(n猫i)瀹规湭缍�(j墨ng)鏈珯璀夊锛屽皪鏈枃浠ュ強鍏朵腑鍏ㄩ儴鎴栬€呴儴鍒嗗収(n猫i)瀹�銆佹枃瀛楃殑鐪熷鎬�銆佸畬鏁存€с€佸強鏅傛€ф湰绔欎笉浣滀换浣曚繚璀夋垨鎵胯锛岃珛璁€鑰呭儏浣滃弮鑰冿紝骞惰珛鑷鏍稿鐩搁棞(gu膩n)鍏�(n猫i)瀹�銆�
|
鏂囩珷鎼滅储
鎮ㄧ従(xi脿n)鍦ㄧ殑浣嶇疆锛� 
