The city's main streets were decked with multi - coloured banners.市区的主要街道装饰着各种颜色的彩旗.Swords brandished and banners waved.刀剑挥舞,旌旗飘扬.Apart from these, let all others remain to guard our glorious banners.除了他们之外, 让其余的人都留...
Is the appointment of worker-directors to be mandatory?工人董事的任命是不是强制性的？Islanding detection is a mandatory function for grid - connected photovoltaic ( PV ) converters .孤岛检测是 光伏 并网逆变器所必备的功能.Competent geologic advice is man...