Ship propeller noise can be predicted by non-dimensional analysis of ship model propeller noise.

通过无量纲分析船模螺旋桨噪声可以预报实船的螺旋桨噪声。

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The forced transverse vibration tests of a ship propeller shafting with a variety of propeller blades were carried out on a test bed.

本文论述了在试验台上进行的不同叶片数螺旋桨轴系横向受迫振动实验。

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Some pumps used for 1000 hours, the ship propeller in the use of time is also greatly reduced because of the efficiency of air piping.

某些水泵使用1000小时左右即出现严重的空蚀，船舶螺旋桨在使用一段时间后也因空蚀而效率大大降低。

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The Japanese say the powerboat repeatedly came very close to the factory ship, the Nisshin Maru, while activists tried to entangle its rudder and propeller with a rope.

VOA: standard.2010.01.06

They feature a system of dynamic propeller thrusters that can hold the ship steady against harsh ocean conditions.

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