service condition的用法和樣例：
例句
- This paper expatiated on the optimizing choice and service condition of Ausmelt furnace refractory material of HouMa Smelt Factory.
本文闡述了侯馬冶鍊廠關於奧斯麥特爐耐火材料的優化選擇和使用情況。 - This paper describes the using condition of metaphor by means of giving more instances, and analyses the related distinguishing features and its causes.
本文列舉了較多的用例，對比喻的使用情況進行了描述，對相關的特點及其產生原因進行了分析。
