They are adapted for rough, heavy service.

它们适用于粗糙、繁重的工作。

youdao

Company business philosophy: high technology, high quality, heavy service, heavy reputation.

公司经营理念：高科技、高品质、重服务、重信誉。

youdao

Company business philosophy: high technology, high quality, heavy service, heavy energy saving.

公司经营理念：高科技、高品质、重服务、重节能。

youdao

During his military service Heavy was involved in the move from Wessex helicopters to the Sea King.

BBC: RAF mountain veteran on search and rescue's future

Another rocket, Ares V, would have the capability to launch heavy payloads - service and cargo modules - that would be needed to service Moon missions.

BBC: Moon astronauts urge Mars mission

Some fans set off from London very early in the morning on Saturday to avoid the motorway queues, but still reported heavy congestion at service stations along the route.

BBC: Fans descend for cup final