n.摩擦音

The question of spirant and the development are also recommanded, and then the improved method is discussed. 針對橡膠軸承存在的鳴音問題,介紹了改進(jìn)研究的進(jìn)展,提出改進(jìn)方法。

groove spirant 溝擦音

blade spirant 舌葉(摩)擦音

n.懷抱大志者；野心家

adj.有抱負(fù)的；有野心的

n.止汗藥

止汗藥