EP元件库|德力西电气有限公司 2016年1月最新价格
CDR2-16/0.11-0.16A CDR2-16/0.14-0.21A CDR2-16/0.19-0.29A CDR2-16/0.27-0.4A CDR2-16/0.35-0.52A CDR2-16/0.42-0.63A CDR2-16/0.55-0.83A CDR2-16/0.7-1.0A CDR2-16/0.9-1.3A CDR2-16/1.1-1.5A CDR2-16/1.3-1.8A CDR2-16/1.5-2.1A CDR2-16/1.7-2.4A CDR2-16/2.1-3A CDR2-16/2.7-4A CDR2-16/3.4-4.5A CDR2-16/4-6A CDR2-16/5.2-7.5A CDR2-16/6.3-9A CDR2-16/7.5-11A CDR2-16/9-13A CDR2-16/12-17.6A CDR2-25/0.1-0.16A CDR2-25/0.16-0.25A CDR2-25/0.25-0.4A CDR2-25/0.4-0.63A CDR2-25/0.63-1A CDR2-25/1-1.4A CDR2-25/1.3-1.8A CDR2-25/1.7-2.4A CDR2-25/2.2-3.1A CDR2-25/2.8-4A CDR2-25/3.5-5A CDR2-25/4.5-6.5A CDR2-25/6.5-8.5A CDR2-25/7.5-11A CDR2-25/10-14A CDR2-25/13-19A CDR2-25/18-25A CDR2-25/24-32A CDR2-45/0.28-0.4A CDR2-45/0.35-0.52A CDR2-45/0.45-0.63A CDR2-45/0.55-0.83A CDR2-45/0.86-1.3A CDR2-45/1.1-1.6A CDR2-45/1.4-2.1A CDR2-45/1.8-2.5A CDR2-45/2.2-3.3A CDR2-45/2.8-4A CDR2-45/3.5-5.2A CDR2-45/4.5-6.3A CDR2-45/5.5-8.3A CDR2-45/7-10A CDR2-45/8.6-13A CDR2-45/11-16A CDR2-45/14-21A CDR2-45/18-27A CDR2-45/25-35A CDR2-45/30-45A CDR2-85/6-10A CDR2-85/8-14A CDR2-85/12-20A CDR2-85/17-29A CDR2-85/25-40A CDR2-85/35-55A CDR2-85/45-70A CDR2-85/60-100A CDR2-105/27-42A CDR2-105/36-52A CDR2-105/45-63A CDR2-105/57-82A CDR2-105/70-105A CDR2-105/80-115A CDR2-170/90-130A CDR2-170/110-160A CDR2-170/140-200A CDR2-250/100-160A CDR2-250/160-250A CDR2-250/250-400A CDR2-370/100-160A CDR2-370/160-250A CDR2-370/250-400A CDR2-370/315-500A -1 2016年最新价格
产品规格列表
1.CDR2-16/0.11-0.16A2.CDR2-16/0.14-0.21A3.CDR2-16/0.19-0.29A4.CDR2-16/0.27-0.4A5.CDR2-16/0.35-0.52A6.CDR2-16/0.42-0.63A7.CDR2-16/0.55-0.83A8.CDR2-16/0.7-1.0A9.CDR2-16/0.9-1.3A10.CDR2-16/1.1-1.5A11.CDR2-16/1.3-1.8A12.CDR2-16/1.5-2.1A13.CDR2-16/1.7-2.4A14.CDR2-16/2.1-3A15.CDR2-16/2.7-4A16.CDR2-16/3.4-4.5A17.CDR2-16/4-6A18.CDR2-16/5.2-7.5A19.CDR2-16/6.3-9A20.CDR2-16/7.5-11A21.CDR2-16/9-13A22.CDR2-16/12-17.6A23.CDR2-25/0.1-0.16A24.CDR2-25/0.16-0.25A25.CDR2-25/0.25-0.4A26.CDR2-25/0.4-0.63A27.CDR2-25/0.63-1A28.CDR2-25/1-1.4A29.CDR2-25/1.3-1.8A30.CDR2-25/1.7-2.4A31.CDR2-25/2.2-3.1A32.CDR2-25/2.8-4A33.CDR2-25/3.5-5A34.CDR2-25/4.5-6.5A35.CDR2-25/6.5-8.5A36.CDR2-25/7.5-11A37.CDR2-25/10-14A38.CDR2-25/13-19A39.CDR2-25/18-25A40.CDR2-25/24-32A41.CDR2-45/0.28-0.4A42.CDR2-45/0.35-0.52A43.CDR2-45/0.45-0.63A44.CDR2-45/0.55-0.83A45.CDR2-45/0.86-1.3A46.CDR2-45/1.1-1.6A47.CDR2-45/1.4-2.1A48.CDR2-45/1.8-2.5A49.CDR2-45/2.2-3.3A50.CDR2-45/2.8-4A51.CDR2-45/3.5-5.2A52.CDR2-45/4.5-6.3A53.CDR2-45/5.5-8.3A54.CDR2-45/7-10A55.CDR2-45/8.6-13A56.CDR2-45/11-16A57.CDR2-45/14-21A58.CDR2-45/18-27A59.CDR2-45/25-35A60.CDR2-45/30-45A61.CDR2-85/6-10A62.CDR2-85/8-14A63.CDR2-85/12-20A64.CDR2-85/17-29A65.CDR2-85/25-40A66.CDR2-85/35-55A67.CDR2-85/45-70A68.CDR2-85/60-100A69.CDR2-105/27-42A70.CDR2-105/36-52A71.CDR2-105/45-63A72.CDR2-105/57-82A73.CDR2-105/70-105A74.CDR2-105/80-115A75.CDR2-170/90-130A76.CDR2-170/110-160A77.CDR2-170/140-200A78.CDR2-250/100-160A79.CDR2-250/160-250A80.CDR2-250/250-400A81.CDR2-370/100-160A82.CDR2-370/160-250A83.CDR2-370/250-400A84.CDR2-370/315-500A(3aR)-3aβ,4,5,5a,6,7,8,9,9a,9bα-Decahydro-4β,9aβ-dihydroxy-5aα-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one
(3R)-3aβ,4,5,5a,6,7,8,9,9a,9bα-Decahydro-6α,9aβ-dihydroxy-3α,5aα-dimethyl-9-methylenenaphtho[1,2-b]furan-2(3H)-one
(3S)-3aβ,4,5,5a,6,7,8,9,9aβ,9bα-Decahydro-5α,9aβ-dihydroxy-3β,5aα-dimethyl-9-methylenenaphtho[1,2-b]furan-2(3H)-one
(3aS,9aβ,9bα)-3a,4,5,5a,6,7,8,9,9a,9b-Decahydro-6α,8α-dihydroxy-5aα-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one
(3S)-3aβ,4,5,5a,9aβ,9bα-Hexahydro-3β,5aα,9-trimethylnaphtho[1,2-b]furan-2(3H)-one
(3aS)-3aβ,4,5,6,6aα,7,8,9,9aβ,9bα-Decahydro-6β-hydroxy-6-methyl-3,9-bis(methylene)azuleno[4,5-b]furan-2(3H)-one
(3R,3aβ,5aα,6α,7α,9aβ,9bα)-3a,4,5,5a,6,7,9a,9b-Octahydro-3α,6,7-trihydroxy-3β,5a,9-trimethylnaphtho[1,2-b]furan-2(3H)-one
(3aR)-3aβ,4,5,5a,6,7,8,9,9aβ,9bα-Decahydro-4β,6β-dihydroxy-5aα-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one
Naphtho[1,2-b]furan-2(3H)-one,decahydro-6-hydroxy-5a-methyl-3,9-bis(methylene)-, (3aS,5aR,6R,9aS,9bS)-
(3aS)-3aβ,4,5,5a,6,7,8,9,9a,9bα-Decahydro-9aβ-hydroxy-5aα-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one
(3aS)-3aβ,4,5,5a,6,7,8,9,9a,9bα-Decahydro-9aβ-hydroxy-5aα-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one
(3aS)-3aβ,4,5,5a,6,7,8,9,9a,9bα-Decahydro-9aβ-hydroxy-5aα-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-Arbusculin C
&1.16g/cm3
&410.7°C at 760 mmHg
&174°C化简或求值：
（1）4（m2+n）+2（n-2m2）
（2）5ab2-[a2b+2（a2b-3ab2）]
（3）若A=x2-3x-6，B=2x2-4x+6，求：当x=-1时，3A-2B的值．
（4）根据右边的数值转换器，当输入的x与y满足2=0时，请列式求出输出的结果．
（5）如果代数式（2x2+ax-y+7）-（2bx2-3x+5y-1）的值与字母x所取的值无关，试求代数式3-2b2-(
a3-3b2)的值．
（1）根据去括号法则去掉括号，然后合并同类项即可；
（2）先去小括号，再去中括号，然后合并同类项即可得解；
（3）把A、B代入，然后去掉括号并合并同类项化简，再代入数据进行计算即可；
（4）根据非负数的性质列式求出x、y的值，然后代入数值转换器的运算进行计算即可求解；
（5）先去括号并合并同类项，然后根据x的系数为0列式求出a、b的值，再把所求代数式合并同类项化简，然后代入a、b的值进行计算．
解：（1）4（m2+n）+2（n-2m2），
=4m2+2n+2n-2m2，
（2）5ab2-[a2b+2（a2b-3ab2）]，
=5ab2-（a2b+2a2b-2ab2），
=5ab2-a2b-2a2b+6ab2，
=-3a2b+11ab2；
（3）3A-2B=3（x2-3x-6）-2（2x2-4x+6），
=3x2-9x-18-4x2+8x-12，
=-x2-x-30，
当x=-1时，原式=-x2-x-30，
=-（-1）2-（-1）-30，
=-1+1-30，
（4）根据题意得，x+1=0，y-=0，
解得x=-1，y=，
根据数值转换器列式，（x2+2y+1）÷2，
=[（-1）2+2×+1）÷2，
（5）（2x2+ax-y+6）-（2bx2-3x+5y-1），
=2xv+ax-y+6-2bx2+3x-5y+1，
=（a-ab）x2+（a+3）x-6y+7，
∵代数式的值与字母x所取的值无关，
∴2-2b=0，a+3=0，
解得a=-3，b=-h，
a3-2b2-（a3-3b2），
=a3-2b2-a3+3b2，
=×（-3）3+（-1）2，(5a+2)+(7-3a)=15 求a的值求过程另外方程该怎么去括号?
(5a+2)+(7-3a)=155a+2+7-3a=155a-3a=15-2-72a=6a=3
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其他类似问题
(5a+2)+(7-3a)=155a+2+7-3a=152a+9=152a=15-92a=6a=6÷2a=3
括号内容不变
括号内符号相反 a=3
扫描下载二维码-5a+(3a-2)-(3a-7)=?
海贼k衕k盦
-5a+(3a-2)-(3a-7)=-5a+3a-2-3a+7=-5a+3a-3a-2+7=-5a+5=5-5a
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其他类似问题
-5a+(3a-2)-(3a-7)=-5a+3a-2-3a+7=-5a+5
吧把括号打开在合并同类项=-5a+5
-5a+（3a-2)-(3a-7)=
-5a+3a-2-3a+7=-5a+3a-3a-2+7=-5a+5(或5-5a）
扫描下载二维码