帮忙翻译哈? wingman1985 翻译还可以,只是感觉理解上不太通顺,如果不看英文只看中文,还是很难理解。是不是应该这样表述一下: double valves are switched in such a way that one of the two will fulfill the most severe service to ensure proper sealing of the other. 这两只阀互相切换的条件,二者任一均能满足在最恶劣的工况下运行时保证能够良好密封(而不出现问题)。查看更多