The memory unit and the performance unit work clearly with each other. The blocks can extend the memory at virtually no limit.

存储单位和执行单位分工明确，可以不受指令访问范围限制，成块地扩充内存。

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Performance issues can emerge from unit tests, which leads me back to the code to see if I can make some improvements.

单元测试会引发性能问题，这使得我重新审视代码以查看是否可以进行一些改进。

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Testing performance is one of the thorniest areas of unit testing.

测试性能是单元测试最为痛苦的方面之一。

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Weakness in the performance chemical unit had to do with weak market demand across the globe.

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Honeywell has thus far only taken the baby step of selling its performance fibers unit, whose products go into tires and ropes.

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Kreinberg, who headed the performance chemicals unit, wanted Dow to dump its commodities business, arguing that it was dragging down his more profitable division.

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