1. The indetermination degree is better tahn3×10 -5 and is more difficult to the nondecimal electric resistance. It is very difficult to the measment of direct courrent.
   检定它的关键是对非十进小电阻以优于3×10-5的不确定度进行测量,这在直流计量中难度较大。

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。