The transmission of N. meningitidis is facilitated by overcrowded housing at family level and by large population displacements due to pilgrimages and traditional markets at regional level.

由于家庭层次过度拥挤的住房以及地区层次朝圣和传统市场造成大量人口流离失所，推动了脑膜炎奈瑟菌的传播。

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In order to provide reliable data transmission service on disturbed channels, a modified Go-Back-N ARQ protocol is used to retransmit data by a communication gateway.

文中介绍为了在有扰信道中提供可靠数据传输服务，通信网关在应用层使用经过改良的连续ARQ协议机制实现数据重传。

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Recent research has also found that N-9 can cause irritation and small sores in some people, and therefore may actually facilitate HIV transmission.

最近的研究也表白n - 9可导致女性疼痛感，并使一部分人出现炎症，反而可能会助长了艾滋病的传播。

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He digs like a dog to learn his subject, particularly if the subject is narrow and peculiar, such as opto-electronic switches, P-N junctions or a hailstorm's effect on spread spectrum wireless video transmission.

FORBES: Digital Rules

The move means the U.N. agency has determined that the virus is capable of significant human-to-human transmission -- a major step toward a pandemic, but not necessarily inevitable, Dr. Keiji Fukuda said.

CNN: World battles swine flu as death toll rises