发布时间:2025-02-03 00:58:20
理论上说,碱和不锈钢是不会反应的,只是会腐蚀掉含铝的合金.
钢铁会发生缓慢的电化学腐蚀,碱性条件也可以发生,但是不锈钢就是针对这一问题而诞生的```
图中的花瓣状门洞的边是由4个直径相等的半圆组成的这个门洞的周长和面积是多少
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