echometer
常見例句
- The echometer was used to monitor the change of the annular water level in the coal- bed methane(CBM)wells production, which could decrease pressure stably and continuously.
在煤層氣井排採過程中，通常用廻聲儀來監(jiān)測環(huán)空液麪變化，通過控制液麪下降速度來實現(xiàn)穩(wěn)定、連續(xù)降壓。 返回 echometer