名詞 replacement:

1. an event in which one thing is substituted for another
   同義詞：substitution, permutation, transposition, switch
2. the act of furnishing an equivalent person or thing in the place of another
   同義詞：replacing
3. someone who takes the place of another person
   同義詞：surrogate, alternate
4. a person or thing that takes or can take the place of another
   同義詞：substitute
5. filling again by supplying what has been used up
   同義詞：refilling, replenishment, renewal
6. a person who follows next in order
   同義詞：successor

1. In addition, we supply small parts for replacement.
   此外，我們還提供備用小零件。
2. My secretary leaves us next week, so we are advertising for a replacement.
   我的秘書下星期要走，所以我們現(xiàn)在正登廣告招聘一位替代者。
3. Good job they have get a replacement for him.
   他們把他替換下來真不錯。
4. The replacement of one image by another during a period of time by the motion of a boundary separating the visual parts of the two images.
   在圖象顯示期間，一幅圖象由另一幅圖象取代。同一屏幕上，兩幅圖象的可見部分有一分界線，移動這一分界線，把一幅圖象逐漸抹掉(劃出), 逐漸顯示另一幅圖象(劃入)。

re.place.ment

n.Abbr. repl.（名詞）縮寫 repl.
The act or process of replacing or of being replaced; substitution.
代替：代替或被代替的行為或過程；替換
One that replaces, especially a person assigned to a vacant military position.
接替者：接替的人，尤指被派到軍隊空缺位置的人