in the process of being developed在進行中，在運輸中，在生產中，在處理中
英語六級真題
It then ships the gas 200 miles by pipeline to Canada, where it is pumped underground in oil recovery operations.
出自-2012年6月閱讀原文
So, instead of innovation for innovation's sake and new products being created simply because the technology is there, the company culture must switch from these point-in-time innovations to a continuous pipeline of innovations from everywhere and everyon
2016年6月六級真題（第一套）聽力 Section A
柯林斯高階英漢雙解學習詞典釋義
N-COUNT
（常指埋于地下的石油或燃氣）管道，管線
A pipeline is a large pipe which is used for carrying oil or gas over a long distance, often underground.