adj.逐步废弃的;
例句:
Extraction technology of manganese and zinc from obsolescent alkaline cell and carbon-zinc battery was studied.
研究了废碳锌电池和碱性电池中金属锌和金属锰的回收.
Electronic equipment quickly becomes obsolescent.
电子设备淘汰得很快.
This type of computer is obsolescent.
这类计算机是快要过时的.