Designed as rugged and highly effective devices, the PMH-H will provide years of troublefreeservice.
坚固耐用的高效设备，该产品的设计将提供的多年免费服务。
2
This means that products are expected to always work "out of the box" and to be reliable in general use and to give long, troublefreeservice.
这意味着产品总是“可拆盒即用”的、具备可靠的使用并可以提供长期、免费的服务。
3
Beijing, for instance, found itself in great traffic trouble when the city announced to provide free metro service for its citizens during the Asian Games in 1990.