Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/20d11df6c136e123ce688ddf961392ab.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 standard watt-hour meter例句_standard watt-hour meter英汉例句_standard watt-hour meter双解例句_按摩法牛津词典
With 3-wire and 4-wire real reactive reference standard, it is capable of calibration for various artificial reactive or real reactive watt-hour meter. 具有三线、四线真无功标准，能满足各类人为无功或真无功电能表的检定。