“先导孔”的概念、定义、翻译、参考文献-科学参考

单词	先导孔
释义	先导孔 Encyclopedia 理学地质钻孔释 pilot hole先导孔在钻深孔或超深孔之前，在深孔或超深孔孔位附近钻的一口直径相对较小、深度相对较浅的钻孔。“双孔方案”中首先施工的钻孔。
随便看	soil temperature observation of rice paddy soil temperature regimes soil testing soil testing and fertilizer recommendation soil texture soil thermoluminescence survey soil thermometer soil thixotropy soil three phases soil tillage Soil & Tillage Research soil tilth soil total nitrogen analysis soil trace elements soil transcriptomics soil treatment method soil types of China (soil genetic classification) soil unsaturated hydraulic conductivity soil vapor extraction soil vertical pattern in China soil virus soil void soil washing soil washing process soil water

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