静子叶片的英文怎么说
静子叶片的英文: n. 叶片;风向标 There is a vane on top of the building. A weather-vane surmounts the spire/The spire is surmounted by a weather-vane. This device operates similarly to the vane pump. Do the vanes in the figure rotate clockwise or counterclockwise? erosive action is achieved at each contraction where a pair of opposing vanes are installed |