Sponsored by the leading mobile phone companies, it showed that using handsets just before going to bed caused people to take longer to reach deeper stages of sleep.

由顶尖手机企业赞助，研究显示睡前使用手机致使进入深度睡眠阶段的时间明显延长。

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Abstract: qidong field is characterized by different structures from deeper to shallower strata its main pay bed is fluvial sandstone segmented by deep cutting faults.

文摘：歧东构造带具有浅层与深层构造相异的特征，主要产层是断层分割的河流相砂体。

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But it will fail to recognize the gas bearing bed buried deeper by the two methods as its porosity log feature is not obvious, especially when density porosity is lower than neutron porosity.

但是，对埋藏较深的气层而言，由于其孔隙度曲线特征并不明显，故用常规方法识别十分困难，特别是当密度孔隙低于中子孔隙度时，上述两方法识别气层均失败。

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"There are people in Australia who stay in bed because they cannot afford to stay warm, " he shouted, as his rosy face turned a deeper shade of red.

BBC: Canberra's season of protest