Based on a description and clasification of the hydraulic fracturing in the Lower Paleozoic strata in Xiushui, Jiangxi, and on an.
本文简要阐述了水力破裂的基本原理和工作方法。
The scheelite orebody of the Yangjingou mining area occurred in the contact zone of the lower Paleozoic Wudaogou Group strata and the Indo-Sinian adamellite.
杨金沟矿区白钨矿体产于下古生界五道沟群地层与印支期二长花岗岩内外接触带中。
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