求翻译：在铝含量对锌-铝合金涂层耐蚀性能影响的研究基础上，通过我国典型自然大气和海水、淡水环境下的曝露及验室条件下中性盐雾加速腐蚀试验和电化学方法，研究了热喷涂Zn、Al及Zn-Al15 等金属性涂层在不同自然环境下对钢铁的防护性能。是什么意思？

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In the aluminum content of zinc-aluminum alloy coating corrosion resistant performance impact on the basis of the study, and through my typical natural atmospheric and seawater, freshwater environment under laboratory conditions of exposure and the neutral salt fog accelerated Corrosion testing and

In the aluminum content to the zinc - aluminum alloy coating anticorrosion performance influence research foundation in, through under our country model natural atmosphere and the sea water, the fresh-water environment exposure and examines under the room condition the neutral salt mist acceleration

Al content on corrosion resistance of Zn-Al alloy coating study on the effect of, on the basis through our typical exposure of natural atmospheric and seawater and fresh water environments and examination room under the condition of neutral salt spray electrochemical method of accelerated corrosion