探井

tànjǐng

prospect (or test) pit; exploring (or exploratory) shaft, test well; exploratory well

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【经】 exploratory well

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tan4 jing3

test pit, exploratory shaft, test well (mineralogy)

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探井

tàn jǐng

test pit; pique; open test pit; manhole; prospect pit; exploratory well

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探井|探井 [tàn jǐng] ► test pit ► exploratory shaft ► test well (mineralogy)