P9 had a coiled-coil region; all five proteins have no signal peptides.

P 9蛋白有一个螺旋卷曲区域，五个蛋白均无信号肽。

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So we need a system can continue to provide GPS navigation signal, where have no signal.

于是需要一种能在中断GPS信号后继续提供递推导航的GPS信号接收机。

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“The shortages of rural migrant workers since 2004 have been no passing blip, but the signal that a major turning point is at hand — a transformational trend,” Ba wrote.

“2004年以来的民工荒并非一时之事，而是大拐点即将到来的标志，是趋势性的改变，”巴曙松写道。

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But our East Africa correspondent says the rebels' brutal tactic of kidnapping children is a clear signal that they have no intention of laying down their arms.

BBC: Burundi students escape rebels

Nokia's boss, Stephen Elop, says the company will invest heavily in customers in Africa and Asia who have a mobile-phone signal but no internet experience.

ECONOMIST: Makers of mobile devices see a new growth market

So while the phone may have GSM network access on shore (because no CDMA signal is found), that is not the case when you are on a ship because ships provide both GSM and CDMA cell sites.

FORBES: Verizon Smartphones And Cruise Ships Don't Mix