They came up with a prototype for the ingenious device which is currently in a trial and analysis period.

目前，他们已做出这个独创设备的模型，不过该模型正处于试验与分析阶段。

youdao

They came up with a prototype for the ingenious device which is currently in a trial and analysis period.

目前，他们已做出这个独创设备的模型，不过该模型正处于试验与分析阶段。

youdao