精品国产91久久久久久黄无码久久婷婷成人综合色,色综合欧美在线视频区,国产精品一区二区手机看片,日韩欧美一区二区三区视频,久久久久久久精品免费久精品,婷婷国产成人亚洲日韩精品免费视频91蜜桃不卡

? ? ? 永強公司從事風(fēng)機行業(yè)20多年，是廣東省高新技術(shù)企業(yè)，擁有流體力學(xué)工程師2人、結構工程師3人、電機工程師3人、助理工程師2個(gè)、研發(fā)實(shí)驗室2個(gè)，院校合作科研單位2所 （西安交通大學(xué)、華南理工大學(xué)）、獲得國家領(lǐng)發(fā)專(zhuān)利26項，其中發(fā)明專(zhuān)利3項。
Yongqiang has been engaged in the fan industry for more than 20 years. It is a high and new technology enterprise in Guangdong Province. It has ventilation, 2 ?uid mechanics engineers, 3 structural engineers, 3 electrical engineers and 2 assistant engineers, there are 2 laboratories, 2 colleges and universities cooperating in scienti?c research, 2 institutes (Xian Jiaotong University, South China University of Technology) , 26 patents granted by the state, including 3 patents of invention.