求翻译：7.3 The reason why we didn't expand the magnesium projects is the corrosivity. The magnesium exposed to air will commit corrosion quickly, so customers are worrying about the reliability after the coating on magnesium destroyed in the process of transport and assembly. It is known that Huawei and one of Universities in Shanghai have been collaborating for more than one year to solve the corrosion problem, but no solution so far.是什么意思？

待解决 悬赏分：1 - 离问题结束还有