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underground survey
释义
underground survey
Encyclopedia
工学
井下测量
释
underground survey
井下测量
为指导和监督矿产资源开发,在矿井特殊条件下所进行测量工作。又称矿井测量。
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ECHO
Echo
echo
Echo Cancellation
echo cardiogram
echocardiography
echo chamber effect
echo correction for attenuation
echocurrent attenuation
Echoes from the Valley
Echoes from Tunes
echogram
echoic memory
echoing characteristic
echo intensity
echolocation
echometer
echometry
echo off
echo on
echopulse
echo range equipment
echo ranging sonar
echo-ranging sonar
echosonogram
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