该设备还具有一个板载粒子计数器同空气中的自然化学和生物物质保持低反应。
The device also has an onboard particle counter to maintain a low response to natural chemical and biological substances in the air.
该设备还具有一个板载粒子计数器同空气中的自然化学和生物物质保持低反应。
The device also has an onboard particle counter to maintain a low response to natural chemical and biological substances in the air.
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