To differentiate, the fork system call returns 0 in the progeny but returns the process ID of process Z to the progenitor.

为了以示区别，fork系统调用在子进程中返回0，但返回给父进程的却是进程z的进程ID。

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It could differentiate into various hemopoietic progenitor cells, and in the lifetime provided new cells for hemopoietic system.

其主要功能是通过不断分化产生各系造血祖细胞，终生为造血系统提供新细胞来源。

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Multistory high effective space dwelling breaks differentiate means of same high space dwelling. The living space system of effective using and flexible variety is created;

多层高效空间住宅打破同高度住宅的划分手段，创造了高效实用、灵活多样的居住空间体系；

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What is needed, but is extremely difficult to develop, is a way to recognize the character of a virus and differentiate it from normal system activity.

CNN: Technology - Analysis: Understanding viruses

By giving operating system control to Microsoft, Nokia stands to lose the opportunity to differentiate its smartphones from the competition, and risks making its smartphones a commodity.

FORBES: Nokia's Pact with Microsoft Makes It Look Like A $12 Stock

The system is evidently able to distinguish between vehicles, animals, and humans -- and it can even differentiate between different types of human activity, including walking, running, and digging.

ENGADGET: UA engineers develop 'invisible,' fiber optic border monitoring system