Correct
闭合
/ bìhé /
Strokes
Definition
to close by coming together (like the lips of a wound, the doors of an elevator, the walls of a channel)/to close by connecting in a loop (like a circuit)/closed-loop
Example
As a Verb
close
1
Bìhé
闭合
kāiguān
开关
close a switch; switch on
As an Adjective
closed
2
Bìhé
闭合
xúnhuánxìtǒng
循环系统
closed circulatory system
3
Bìhé
闭合
qūxiàn
曲线
closed curve