如今回到MIT后，她正在改进设计的雏形，试图进一步提高密封的压力以及设备能够运载的负压量。
Now back in Cambridge, she is tinkering with the prototype, trying to further improve the pressure seal and the amount of negative pressure the device can deliver.
改进后，大大缩短了设备检修时间，降低了工人的劳动强度。
The equipment repair time is shortened and the labor strength of the workers is reduced after improvement.
采用改进后的设备，电积率在99%以上，平均电流效率为20.17%。
Electrolytic rate is more than 99%, average current efficiency is 20.17% using the improved equipment.
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