mouth aperture
英 [maʊθ ˈæpətʃə(r)]
美 [maʊθ ˈæpərtʃʊr]
网络 口裂
双语例句
- The method does not affect the aerodynamic performance of the ventilator, but the resonator parameters such as the length, the perforating rate at the mouth, and the aperture could only be determined by test.
Koopman首次采用了共鸣器对风机进行降噪，这种方法不影响风机的空气动力性能。但是共鸣器的长度、口部穿孔率及孔径等参数还没有普遍规律可循，只能通过试验加以确定。