With fixed frequency control circuit, it provides with over voltage, over current, overheat and short circuit protection.

该系列电源适配器，采用固定频率控制电路，具备限流、限压、过温、短路全功能保护。

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But Steady low fan speed change, so that airflow and vibration according to a fixed frequency, so we might as natural wind moderate.

但稳定低风扇速度变化，使气流和振动按固定频率，因此我们可能是自然风温和。

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With the drastic frequency competition of communication, the usual communications with fixed frequency suffer from a serious threat.

随着通信领域的频率竞争愈演愈烈，惯用的定频通信受到了严重威胁。

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Unlike traditional keyboards that place your hands in a rigid position, the Engage Keyboard features a patented motion system that studies your typing frequency and makes subtle, comfortable adjustments periodically so your hands and wrists are never in a fixed position while you work.

ENGADGET: Smartfish Engage keyboard automates ergonomics, is finally available