A corroded surface of a rusty metal nail appears like an alien environment when enlarged 600 times.
生锈铁钉遭到侵蚀的表面放大600倍后，好似外星环境。
Firstly, mechanical properties of corroded concrete and rusty rebar were studied.
首先，研究了受腐蚀钢筋混凝土材料的物理力学性能。
Firstly, mechanical properties of corroded concrete and rusty rebar were studied.
首先，研究了受腐蚀钢筋混凝土材料的物理力学性能。
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