1·The technology of surface modification was an efficient way to increase fatigue life of the mainshaft bearing of the aircraft engines.
表面改性处理技术是一种提高航空发动机主轴轴承疲劳寿命的有效途径。
2·The HDL series automatic tool-changing electrical mainshaft developed by the company can be used combined with the high speed numerical control machining center.
公司开发的HDL系列自动换刀电主轴与高速数控加工中心配套使用。