self-sustained oscillation

The shear layer self-sustained oscillation on the opening of the cavity,the sound standing wave oscillation in the cavity and the vibration of the shell(wall of cavity) are induced simultaneously by a f low.

对腔口流体自[持]振[荡]和腔内声振荡的压力及壳的振动加速度作了测量和谱分析，并对三者之间的相互影响进行了综合研究。

The frequency of fluid dynamic self-sustained oscillation of a cavity is related to the length offlange of cavity.

腔口流体动力自[持]振[荡]的频率和导流板的长度有一定关系。

The first is " zi" in the sentence "There s a fine girl in neighbour named Qin Luo -fu", which means "originally" as an adverb.

第一,在“东家有贤女,自名秦罗敷”中,“自”应作副词“本来”讲。

Du Fu tends to employ “ego” since the word makes more than 360 appea rances in the book The Detailed Notes of Du Fu′s Poems.

杜甫好言“自”字,一部《杜诗详注》,该字出现了360多处。