Has the specialty to result in the air conditioning service senior technician and engineer.

有专业得空调维修高级技术员和工程师。

youdao

The young hour is air force's airplane pilot, now is to retires the engineer!

China年青时是空军飞行员，现在是退休工程师！

youdao

The young hour is air force's airplane pilot, now is to retires the engineer!

China年青时是空军飞行员，现在是退休工程师！

youdao