承包商应在施工工程区内设置一切必要的安全防护信号装置，这些信号装置包括（但不限于）

The contractor shall set up all the necessary safety protection signal devices on the construction site, including (but not limited to)

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有证据显示一些设在阿富汗的外国使馆和领事馆都具有拦截复杂信号的能力，包括防护水平低的移动电话。

There is evidence some foreign embassies and consulates located in Afghanistan are capable of sophisticated signals interception to include the least protected mobile phones.

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为了在心灵受创伤之前避免受到伤害，大脑会释放出防护性的化学信号，同时也会引发强烈的幻觉。

In order to guard against damage during trauma, the brain releases protective chemicals that also happen to trigger intense hallucinations.

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