5o㎡x3十35㎡x2的铜电缆一米多少钱 RJv3x95+1X50㎡铜心电缆多少钱一米
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没有这一规格！相似的规格是：
非铠装型：YJV-0.6/1KV 3×50+2×25，当前行情价：84.00元/米，含税，不含运费。
铠装型：YJV22-0.6/1KV 3×50+2×25，当前行情价：103.00元/米，含税，不含运费。
实际交易价还需参考订货数量、铜材行情、交货地址等因数。
绛旓細2(2 x鐨勫钩鏂-4)涓x鐨勫钩鏂+2=3x鐨勫钩鏂逛竴6 ;5銕涓3m+1=(銕+m涓2)+( 4m²-4m+3)锛
绛旓細(-x+2銕+5)+(4銕-3-6x)=-x+2銕+5+4銕-3-6x=-7x+6銕+2.
绛旓細浠ｈ〃鏄3瀵癸紙姣忓2鑺紝姣忚姱瀵间綋1.5mm²鐨勫弻缁炵嚎锛岄氬父鐢ㄤ簬浼犺緭DCS淇″彿銆
绛旓細鐢卞凡鐭ユ潯浠跺緱锛歮=5鎴0锛屾墍浠(m-3)x(m-2锛=6
绛旓細鍥炵瓟锛毼 >0 ,涔熷氨鏄4(m+1)骞虫柟-12m骞虫柟>0 ,鏈鍚庡緱鍒扮殑绛旀鏄痬澶т簬璐熶笁鍒嗕箣涓,灏忎簬涓
绛旓細鍏朵粬鍥炵瓟 3鑲＄嚎 2鑺x1.5绠楁槸涓鑲 绠鍗曡〃绀哄氨 鏄3鏍 2x1.5鐨鐢电紗 澶栬竟鍙堝寘璧锋潵 椋庢氮shine | 鍙戝竷浜2013-07-05 涓炬姤| 璇勮 1 0 涓烘偍鎺ㄨ崘: 1.5m搴婃槸浠涔堟剰鎬 鍐呭鏄粈涔堟剰鎬 1.5m鐩哥墖澶氬ぇ 鐢垫1.5m/s鏄粈涔堟剰鎬 1.5m鐨勭収鐗囨槸浠涔堟牱鐨 1.5m搴婇暱搴﹀灏 搴1.5m鏄澶 1.5m搴婂昂瀵 浜笢...
绛旓細鐢变辅x涓3锝滃崄鈭氾紙y涓2锛夛紳0锛屽彲浠ュ緱鍒扮殑閮芥槸锛歺锛3锛屽苟涓旇繕鏈墆锛2銆備簬鏄氨鏈 2鈭氾紙xy锛夛紳2鈭6銆
绛旓細鏄剧劧 m鈮1 璁惧師鐐逛负O 璁句袱鐒︾偣妯潗鏍囦负 x1,x2 S鈻矨BC=1/2|AB|路|OC|=1/2|x1-x2|路1=1/2|x1-x2| =鈭歔(x1+x2)²-4x1x2]鏍规嵁闊﹁揪瀹氱悊寰楀埌 [(m-2)/(m-1)]²+4/(m-1)=4 瑙ｅ緱 m=2鎴2/3
绛旓細灏辨槸鑱氭隘涔欑儻缁濈紭锛岄摑鑺紝甯冪嚎鐢紝鍗曡姱锛屾埅闈㈢Н2.5骞虫柟姣背瀵肩嚎銆傚叾涓悇瀛楁瘝鏁版嵁鐨勬剰鎬濊涓嬶細B锛氬竷绾跨敤鐢电嚎銆侺锛氶摑鏉愭枡绾胯姱銆俈锛氬绾跨粷缂樼敤鑱氭隘涔欑儻鏉愭枡銆1X2.5mm2锛氭埅闈㈢Н2.5骞虫柟姣背鍗曡姱瀵肩嚎銆
绛旓細锛1锛2m(銕-n +1)=2m^3-2m^2+2m,锛2锛4锛x+1锛²-锛坸+5锛夛紙x-5锛=4X^2+8X+4-X^2+25 =3X^2+8X+29 锛3锛夛紙x-2锛夛紙x+2锛+2 =X^2-4+2 =X^2-2 锛4锛夛紙2a-b锛塣2+8ab =4a^2-4ab+b^2+8ab =4a^2+4ab+b^2.
