The National Transportation Safety Board sent letters to the federal agency that regulates bus and truck safety and the US Coast Guard citing accidents in which sleep apnea was a factor.

国家运输安全委员会致函联邦监管公共汽车和卡车安全以及美国海岸防卫队的机构，指出在交通意外中，睡眠呼吸暂停是一个因素。

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In such a case, the SCSI bus will be the performance-limiting factor.

在这种情况下，SCSI总线将成为限制性能的因素。

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By means of the bit length factor, the simple data throughput models of the Token Bus and Ring are derived.

利用位长度因素，本文推导了令牌总线和令牌环的简单吞吐性能模型。

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"People get up every day and use a lot of different forms of transportation without thinking about the safety factor, and we don't want them to worry about the safety of the bus they ride on or the highway they drive on, " LaHood said.

CNN: STORY HIGHLIGHTS

But my dim recollection is that the single most important factor in selecting a stroller, besides price (particularly when you're rushing for the crosstown bus with your kid under your arm, or chasing it down the Spanish Steps), is weight.

WSJ: Cutting Edge, for Baby