core sampling 岩心采样
core-drill sampling 钻取岩心
Mini Soil Core Sampling Kits 土芯取样套件
dam core sampling 坝体芯样
coal core sampling 煤芯煤样
Core sampling drill 岩芯取样钻机
core sampling drilling 钻取芯样法
concrete core sampling 抽取砼芯样
ROV drill core sampling ROV岩心钻探取样
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