“双转子”的英语？

实验结果对于正确使用该类型双转子涡喷发动机具有重要的现实意义.The experimental result has practical significance for correctly using the twin - rotor turbojet.本公司生产的高粘压耐磨型双转子泵, 已达到世界同类产品技术.The company's blood pressure wear - resistant dual - roto...