helical blower

• 叶轮式鼓风机,螺旋鼓风机

helical blower的用法和样例：

例句

1. The Japanese experience in design, selection and maintenance of blower assemblies is described in this paper in detail.
   较详细地介绍了日本在鼓风机的设计选型和维护管理方面的经验。
2. The same powerful positive displacement blower technology used in large truck mounted vacuums is employed in the SAVE-YOUR-BACK-VAC.
   吸尘器上还使用了同样强大的正排量鼓风机技术。