“pit and adit engineering”的概念、定义、翻译、参考文献-科学参考

单词	pit and adit engineering
释义	pit and adit engineering Encyclopedia 经济学山地工程释 pit and adit engineering山地工程地质勘查中为了解地下地质情况，动用一定装备，对地质体运用揭露、取样、化验、分析等手段进行勘探的方法。
随便看	variable structure control variable structure control system variable-structured system variable structure guidance law variable symbol variable temperature blackbody radiation source variable temperature control of greenhouse variable term variable thrust rocket engine variable thrust rocket motor variable time scale variable transformation variable ultrafast photographic shutter variable ultraviolet object variable valve lift variable valve mechanism variable valve timing variable valve timing system variable-velocity star variable voltage variable water flow central air-conditioning system variable X-ray source variable γ-ray source variace-covariance matrix variance

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