Maintenance occurs in services much less than you might expect; maintenance of a service often involves not changing the existing service, but producing a new service version.

维护在服务中出现的频率远比您可能预期的要低很多；服务的维护通常不会涉及到更改现有服务，而会产生一个新的服务版本。

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A producing Web service maintains subscription lists and looks them up to match the topic in a list and the topic in the notification request.

生产Web服务负责维护订阅列表并在其中查找它们，以便与列表中的主题和通知请求中的主题相匹配。

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If the producing Web service identifies a match, it issues a notification to the consuming Web services associated with that subscription.

如果生产Web服务确定了一个匹配项，它就会向与该订阅关联的消费Web服务发出一个通知。

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Worse still, most of these jobs came from the goods-consuming service sector rather than the goods-producing manufacturing sector (which lost another 6, 000 jobs).

FORBES: Further Fed Easing Writes The Dollar's Epitaph

The social check-in service Foursquare just celebrated a booming 2010 by producing this infographic that shows where, when and why people check-in using the service.

FORBES: Foursquare: What 3400% Growth Looks Like

The agreement called for IBM to sell--rather than exclusively lease--its equipment, to create a subsidiary for after-sale service and to limit itself to producing no more than half of the country's punch cards.

FORBES: Beset by lawyers