There are various kinds of trouble warning devices.

设有各种故障报警装置。

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Both the necessity and feasibility of laser passive reconnaissance warning devices being attached to our logistic equipment are discussed, with a tentative plan of the device demonstrated.

重点探讨了后勤机动装备加装激光告警器的必要性和可行性，并对激光告警器设计方案进行了初步论证。

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The cellular warning devices are known as HLA class 1 molecules, which are usually unique to each person.

这种细胞报警构造叫做HLA 1组分子，在通常情况下，每一个人的HLA 1组分子都是独特的。

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Some of that work is to design navigational and warning devices for a safer vehicle.

FORBES: Magazine Article

But some tech veterans give warning that designing novel devices people feel comfortable wearing is an especially tricky task.

ECONOMIST: Wearable computing

As you might imagine, the warning is hitting Energy Conversion Devices shares hard.

FORBES: Solar Shares Slide; Fresh Worries On European Subsidy Cuts