The repeatability and durability of the method to determine the contents of acid soluble substances in medical talc powder (MTP) and the main influence factors are discussed in this paper.
考察药用滑石粉酸中可溶物测定方法的重复性、耐用性，分析主要影响因素。
In sandstone formations, the acid reacts with the soluble substances in the formation matrix to enlarge the pore Spaces.
在砂岩地层中，酸与地层基体中的可溶物质反应，以扩大孔隙空间。
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