This is because fifth-generation networks are still in testing and trial phases.
这是因为第五代网络仍处于测试和试验阶段。
2
In the meantime, the USA continues the development of a new fifth-generation aircraft - F-35.
与此同时，美国正继续开发第五代新型战机f - 35。
3
This fifth-generation fighter will provide the US Marine Corps and other future customers with increased capability and the option to deploy from forward bases.