Introduces to select changing plans and technique of sulfuration strong pulley in coal mine,ensures the quality,shortens the changing time.
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Introduces to select changing plans and technique of sulfuration strong pulley in coal mine, ensures the quality, shortens the changing time.
系统地介绍了主斜井强力皮带硫化、更换方案选取和硫化工艺，有效的保证了质量，缩短了更换时间。
The RF method shortens the ion extraction time, and increases the ion extraction efficiency. It can also control the plasma density by changing the magnetic field.
共振法缩短了离子引出时间，提高了离子引出效率，并且可以通过对外加磁场的调节来控制等离子体密度。
The client software in STB shortens the time for changing channels to: even if different client applications are used, users can still enjoy the same experience same as cable TV.
机顶盒中的客户端软件降低频道切换的时间：用户可享受和有线电视一样的观看体验。
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