更换万能防喷器胶芯。
可编程控制器（电脑）控制生产程序。喷胶、封口、切纸、换芯自动同步进行。
Production Procedure is controlled by Programmable controller system. Spraying, sealing, cutting and core exchanging are conducted synchronously.
研制旋转防喷器有几大难点，主要集中在密封胶芯、旋转动密封及轴承，各自的寿命满足实际应用是保证钻井施工安全的关键。
There are many difficulties during the new rotating blowout preventer's manufacture and test, they concentrate on spherical seal, dynamic seal and bearings.
应用推荐