Correct
环线
/ huánxiàn /
Strokes
Definition
ring road/circle line (e.g. rail or subway)
Example
As a Noun
circular/ring route
1
Dìtiě
地铁
huánxiàn
环线
circular subway route; metro loop line
As a Noun
loop line
2
Huánxiàn
环线
diànzǔ
电阻
line loop resistance
3
Huánxiàn
环线
bōhào
拨号
loop dialing