Electrochemical toxic gas sensors are micro fuel cells, designed to be maintenance-free and stable for long periods.
电化学毒气传感器是一种微燃料电池元件，不必保养而可以有长期的稳定性。
Electrochemical toxic gas sensors are micro fuel cells, designed to be maintenance-free and stable for long periods.
电化学毒气传感器是一种微燃料电池元件，不必保养而可以有长期的稳定性。
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