低速工作转速范围达同步转速的30％。
The low. speed range comes to 30 percent of synchronous speed of the machine.
实验测量了在设计转速下该风机全工作范围的性能参数。
The performance parameters at the design speed are measured in the experiments.
结构紧凑，体积小，重量轻，可在较高转速下工作。
Compact structure, small volume, light weight, can work under high rotation speed.
当环境空气超过最高设置温度时，风扇将会以最大转速工作。
At temperatures above the higher set point, the fan will operate at its maximum speed.
但工作时，温升较大，允许极限转速较低。
But work, bigger, allowed temperature limit rotational speed is low.
但工作时，温升较大，允许极限转速较低。
But work, bigger, allowed temperature limit rotational speed is low.
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