semi-arch
美
英 
例句
Silent meaning The word not spoken goes not quite unheard. It lingers in the eye, in the semi-arch of brow.
無聲的語言,并非完全聽不見。它蕩漾在眼波里,表露在眉宇間。
Since lump size of upper-immediate roof is large, a semi-arch equilibrium structure of the stratum-rock sometimes can be formed.
上位直接頂巖塊強度較高、塊度較大,容易形成“巖-矸”半拱式平衡結構。