It is a must to add various additives in wall materials to meet different cutoff requirements against the cutoff wall's functions.
针对防渗墙所起作用的不同，墙体材料中需添加各种外加剂以满足不同防渗标准的要求。
These new technologies and methods basically represent the advanced level in the cutoff wall construction technology in China at present.
这些新技术、新方法代表了我国当前防渗墙施工技术的先进水平。
Therefore, we find the quantum states density becomes finite near the horizon of black hole and the divergence of entropy in the brick wall model is removed without any unnatural cutoff.
这样我们发现黑洞视界附近的量子态密度变得有限，从而消除了砖墙模型中熵的发散而不需要采取任何不自然的截断。
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