Service requesters find required services using a service broker and bind to them.

服务请求者通过服务中介者查找所申请的服务，并绑定到这些服务上。

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The system thus far required services to process the messages they received themselves.

系统要求服务处理它们自己收到的消息。

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The SOAP client communicates with the SOAP server and invokes the required services.

SOAP客户机与SOAP服务器进行通信，并调用所需的服务。

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The basics are covered visits to the doctor,medicines, treatments - although adults are required to pay a nominal co-pay fee for some items and services.

VOA: standard.2009.09.28

These figures spell out what services are required now and also highlight which services will be required in the future.

BBC: Residential homes face cut from 56 to 28

Staff at the centre will then direct the call to one, or all, of the required emergency services - police, ambulance and fire and rescue.

BBC: NEWS | UK | Northern Ireland | Emergency text service for deaf

Police organizations depend a lot on outside companies that provide information and services required for day-to-day operations.

FORBES: The Business of Policing in a Tough Economy