On the surface, these latest events might give little cause for alarm.

表面上看，最近的这些事件并不足以拉响警报。

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At $150, the Giovannoni Timesphere is a nifty alarm clock – well yes not a watch practically though, however is capable of projecting the time onto any surface via a wireless orb.

售价150美刀的Giovannoni时间球是一个俏皮的闹钟——呃，尽管实际上它不是一块表，但是它能够利用一个红外球将时间投影到任何物体的表面。

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The construction, working principle and performance parameters of this kind of cable are introduced. A system using this cable for the detection and alarm of a surface temperature is described also.

本文介绍了这种电缆的结构、工作原理和性能参数，以及用其作为温度传感器的表面温度监测与报警系统。

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On the surface, these latest events might give little cause for alarm.

ECONOMIST: Ping-pong politics roil three island nations

The alarm was raised at 1010 BST when he failed to surface.

BBC: Llyn Gwynant (library picture Andrew March)

However, before the alarm can be sounded in this way, proteins on the surface of the antigen-presenting cell and the T cell must bind together in what is called a cellular handshake.

ECONOMIST: Breaching the body's defences