central portion的用法和樣例：
例句
- The elastic modulus of the center portion is higher than elastic moduli of the entering portion and the exit portion.
中央部的彈性模量高于進(jìn)入部和離開(kāi)部的彈性模量。 - As a result, however, an official from the central government propaganda department visited from Beijing and accused Ma of publishing an "inappropriate" and "false" story.
然而，結果卻是，一個(gè)來(lái)自北京中央部宣傳部門(mén)的官員到訪(fǎng)并且指控馬做了一個(gè)不適當而且錯誤的報道。
