The special depth checkingapparatus is constructed by cable head eqipped on top and accentuating part eqipped on bottom of micro-magnetic localizer.
专用校深仪器是由微型磁性定位器上配电缆头下配加重部分而构成。
2
Te present utility model discloses a digital type hopper scale checkingapparatus of which the checking is quick and correct and the signals are stable.
本实用新型公开了能快速准确校验、信号稳定的数字式料斗秤校验装置。
3
The depth checking method is combined with special depth checkingapparatus, may achieve all depth checking datas by once drop of apparatus into oil well.