Soft starter reduce the shock that is happened in the process start and stop to the draught fan equipment so as to extend convey system service life and decrease maintenance.

降低起动和停车过程中对水泵、管道等设备的冲击，从而延长水泵系统的使用寿命，减少维护量。

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On the SLS Roadster, the supporting structure for the draught-stop is made as standard as a carbon sandwich structure.

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