Medium Wave Infrared Heaters distinguish themselves by being highly efficient and stable while having a long operating life.

该中波红外加热器区高效稳定，同时具有长使用寿命。

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The novel facing sun automatic tracking device has the advantages of simplicity and reliability, high automation and long operating life.

本向日自动跟踪装置简单可靠，自动化程度高，工作寿命长。

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The advantages are high efficiency, Low-power consumption, Long operating life, no radiation, environment protective, energy saving and anti-explosion.

具有高效、省电、长寿命、无辐射、环保节能、防爆等优点。

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It has a long battery life, operating for up to eight hours, as well as a spill proof keyboard and touchpad.

ENGADGET: DRS unveils trio of ruggedized tablets in Windows and Android flavors

In practice, however, it is a formula for condemning America's armed forces to operating obsolete equipment long after its useful service life is ended -- and inviting others to perceive and perhaps to act upon exploitable weaknesses on the part of the United States.

CENTERFORSECURITYPOLICY: Center For Security Policy