For those interested in light curtains, take note that they could be going off when least expected.

对于那些对安全光栅感兴趣的工场主而言，要注意的是自动化单元可能在意想不到的情况下停止工作。

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The main products are safety components, control system, frequency converter. light curtains, intercom, encoders, and so on.

主营产品有案例部件、挖掘系统、变频器、光幕、对讲机、编码器等等。

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Optoelectronic safety sensors, which include light curtains, are one of the largest product segments of the machine safety market.

包含光幕的安全光电传感器是机器安全市场最大的细分产品之一。

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In addition to free VOIP, internet radio and wall mounted control stations for light , curtains and temperature, each room will boast three or more tablets to interface with room service and housekeeping, workstations with various international power outlets and chargers, and 3D flatscreen TVs set up to accept input (movies, Slideshows, presentations) from smartphones, computers, cameras, tablets or memory cards.

FORBES: Free International Phone Calls: The New Normal For Hotels?

Originally, silk curtains controlled light and privacy.

WSJ: How Less Became More

One moment, the ethereal white or green curtains of light with a streak of violet take on forms that evoke the ancient mythology of the north - a palace of lights, a Sami fire in the wilderness, the prow of a Viking ship.

BBC: The perfect trip: Norway