Correct

联动

/ lián dòng / 
Strokes

Example

As a Verb

react in chain

1
Liándòng
联动
zhuāngzhì
装置

chain reaction unit

2
Méi
煤
diàn
电
jiàgé
价格
liándòng
联动
jīzhì
机制

policy/mechanism of coal-electricity price linkage