英语翻译wherein R2,R3,R4,are each independently selected from th
来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/28 06:42:09
英语翻译
wherein R2,R3,R4,are each independently selected from the group consisting of hydrogen,methyl,CO.sub.2 Et,CH.sub.2 OH,(CH.sub.2).sub.3 OH.,and linear or branched alkyl,substituted or unsubstituted alkoxy alkyl,
wherein R2,R3,R4,are each independently selected from the group consisting of hydrogen,methyl,CO.sub.2 Et,CH.sub.2 OH,(CH.sub.2).sub.3 OH.,and linear or branched alkyl,substituted or unsubstituted alkoxy alkyl,
R2,R3,R4,可以独立地选择以下基团:-H,-CH3,-CO(Et)2,-CH(OH)2,-C(OH)3,直连或支链烷烃,取代或非取代烷氧基烷烃
一共R1,R2,R3,R4,R5五个电阻,R1串联于R3,R4,R3与R4并联,R2并联于R1,R3,R4,R5在干路上
那个电阻的什么定律R1/R2=R3/R4
某家庭电路,一个电热器,现有4个电阻,R1,R2,R3,R4(R1
戴维南定律,开路电压Uoc怎么算?等效电阻是不是(R1//R3)+(R2//R4)?
the players selected from the whole country are expected to
电阻R1、R2、R3串联,与R4并联;R1与R2的电流是1.8A,R2与R3的电流是1.6A,R2=R4,求:总电流是多
如图所示,四个电阻R1,R2,R3,R4串联.已知R2=R4,Uac=150v,Ubd=70v,求A,E两点之间的电压U
电源电阻值的计算?R1与R4串联R2与R5串联(R1R2)、(R4R5)、电源三者并联.R3联接于R1与R4、R2与R5
英语翻译Twenty trees wererandomly selected from 30 trees for whi
英语翻译Selected results from control valve re-engineering proje
英语翻译read the following sentence selected from passageA,payin
有四个电阻分别为R1,R2,R3,R4电阻分别为4欧,2欧,2欧和402欧,R1和R2串联,R2又和R3串联,然后和R4