a scarce resource的意思|示意

So a price mechanism and market is needed to mediate the competition for a scarce resource.

于是就要引入价格机制以及市场调节，来调节对稀缺资源的竞争。

The resource is either scarce or not while Web services are waiting to send or receive a message.

Web 服务等待发送或接收消息时，资源可能缺乏也可能不缺乏。

If you're managing a project, figure out what the scarce resource is (it's not usually money).

当你在做一个项目时，先看看你有什么稀有资源(通常不会是钱)。

On a cell phone, memory is a scarce and precious resource, and should be released back to the system when your program is done servicing a request.

在手机中，内存是一种非常稀缺的资源，因此，当程序处理完一个请求后，应当将所占用的内存返回给系统。

Furthermore, most species do not depend entirely on a single resource, if the major resource for a species becomes scarce, the species can usually shift to alternative resources.

此外，大多数物种并不完全依赖单一的资源，如果一个物种的主要资源变得稀缺，该物种通常可以转向替代资源。

In reality, the message queuing resource is either scarce or isn't scarce while Web services are waiting to send or receive a message.

实际上，在Web Services等待发送或接收消息时，消息队列资源要么稀缺要么不稀缺。