At a rough level, you usually just want to automatically call a less specific rule at either the start or the end of execution of a code block.

在粗糙的层次上，您通常只想在开始或结束执行代码块时自动调用不太特定的规则。

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So, in less than 30 lines of script, you've implemented the map and reduce elements and demonstrated their execution within the Hadoop framework.

在不到30行的脚本中，您已经在Hadoop框架内实现了map和reduce元素并演示了它们的执行。

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The definite price stated by a customer to a broker restricting the execution of an order to buy for not more than, or to sell for not less than, the stated price.

由客户发给经纪商的一个指定价格，限制其指令在买入时不高于该价格，卖出时不低于该价格。

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The use of a triple pun could be cloying in a less sophisticated execution, but here, the fact that the app is about polls between polar opposite choices and that the logo (and mascot) for the design is a polar bear is smile (not groan) inducing.

FORBES: Move up http://i.forbesimg.com t Move down

Given that the company measures the number and implementation rate of ideas, managers can convert a single initiative into many distinct efforts, and they may make their concepts less controversial to maximize the odds of their execution.

FORBES: How to Keep Big Ideas Big

To put it another way, what bankers call "the execution risk" in the deal looks less in a Co-op takeover than for an NBNK takeover.

BBC: Co-op set to become big banker