Besides, immature concrete additive is the hidden defects of its durability.

同时，不成熟的混凝土外加剂成为其耐久性的重要隐患。

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Application of geologic radar detection to hidden defects is introduced herein by taking the investigation of certain dam of reservoir as an example.

本文以某水库坝体的勘察为例，介绍地质雷达探测技术在坝体隐蔽缺陷高分辨率探测中的实际应用。

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In either case there is no ornamentation to hide irregularities, no moldings to cover hidden defects and no supports to strengthen concealed weaknesses.

在这两种情况下，都无法用修饰掩盖不平整，以造型遮盖暗藏的缺陷，以支撑物来加固不牢的根基。

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But first-time buyers sometimes miss hidden defects that may not be physical.

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