shallow layer

基本解釋

According to the results in analysis of the sample water quality, it evaluates the shallow-layer groundwater quality in the urban planning area.
根據(jù)水質(zhì)取樣分析結(jié)果，對區(qū)內(nèi)淺層地下水水質(zhì)進(jìn)行評價(jià)；
The results of shallow-layer apparent density mapping reveal that: ① The crustal density in Sichuan basin is higher than that in Songpan-Ganzi orogenic zone;
淺層重力異常的密度填圖表明①四川盆地地殼密度較高，松潘—甘孜造山帶密度較低；
The groundwater resources in Suzhou Urban Planning Area are abundant, but previous application and study are related to the deep-layer groundwater more than the shallow-layer groundwater.
蘇州城市規(guī)劃區(qū)內(nèi)地下水資源豐富，但是以前相關(guān)的應(yīng)用、研究主要是針對深層地下水，而淺層地下水較少涉及。

The thinking is that you could bury a small reactor in a shallow layer of bedrock, perhaps 30-50 meters underground.
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