必要时，触发或允许触发某些安全防护装置的运动。 。
Where necessary, trigger or permit the triggering of certain safeguard movements.
开始作业前先确认机器是否有安全防护装置。
Make sure safety guards are in place before you begin any job.
承包商应该自己提供个人防护装备和安全装置。
The contractor is expected to supply their own personal protective equipment and safety equipment.
我们因为家里有了防护装置而感到安全。
设计了一种红外线机床安全防护装置。
An infrared safety protection device of machine tool was designed.
设计了一种红外线机床安全防护装置。
An infrared safety protection device of machine tool was designed.
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