The technology of frequency conversion timing and soft start should be widely applied.
指出变频调速和软启动技术应该大力推广应用。
Besides, the air conditioner system with frequency conversion has many virtues such as small start-up current, fast refrigeration or calefaction, low noises and so on.
此外，铁路客车空气调节变频控制系统还有启动电流小，快速制冷、制热，噪音小等优点。
Frequency conversion soft start out to the impact of the power grid start, reduce the power distribution costs, safe and reliable in operation.
变频软启动淘汰启动时对电网的冲击，降低配电费用，使用安全可靠。
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