Correct

扩容

/ kuò róng /
Strokes

Example

As a Verb

expand the capacity of telecommunication

1
Diànxìn
电信
kuòróng
扩容
gōngchéng
工程

telecommunication capacity expansion project

As a Verb

expand in scale, scope etc

2
Zuìjìn
最近
zhè
nián
shì
股市
kuòróng
扩容
hěn
kuài
  

The stock market has expanded rapidly in the past few years.