shipping propeller

• 船舶推进器

shipping propeller的用法和样例：

例句

1. The ship's propeller churned the waves to foam.
   那条船的推进器把水浪搅动得泡沫四起。
2. The depicted type is found in bacteria such as E. coli and Salmonella, and rotates like a propeller when the bacterium swims.
   上图这种鞭毛是类似大肠杆菌和沙门氏菌这样的细菌所有的，在细菌游动时它会像推进器一样旋转。