To send a signal to a process, the kernel sets a bit in the signal field of the process table entry, corresponding to the type of signal received.

为了向进程发送一个信号，内核在进程表条目的信号域中设置一个位，对应于收到的信号的类型。

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This notion of inter-domain transformation is useful in many fields of study-for example, moving from the time domain into the frequency domain in the field of signal processing.

这种域间转换的概念在很多领域的学习中都很有用—例如，信号处理领域中从时间域移入频率域。

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Tumor is a kind of gene disease in the field of molecular biology, canceration is correlated with signal transduction system, regulate of cell cycle, differentiation and development of cell apoptosis.

肿瘤是一种基因疾病，在当前分子生物学领域中，细胞癌变与细胞信号传导系统、细胞周期调控、细胞的生长和分化，以及细胞凋亡等均有关联。

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"Whether waivable or not, timelines send exactly the wrong signal to our adversaries, to our allies, and most importantly, to the troops in the field, " said White House Chief of Staff Josh Bolten after he and congressional leaders failed to agree on language for a war funding bill.

NPR: White House, Democrats, Hit Impasse on Iraq

This issue will seem like a nuance to some readers, but those in the field of medical research recognize it as a major step forward and a signal that the company is serious about promoting open science.

FORBES: Pigs Fly As Open Science Comes To Big Pharma