Dictionary › 铅垂线
铅垂线
qiān chuí xiàn
What 铅垂线 means
- plumbline
The characters in 铅垂线
Looking a word up is not learning it. GraphChinese puts all of HSK 1–6 into one dependency graph, teaches each piece only once its prerequisites are solid, and schedules reviews to land just before you would forget.
Start learning — $49 lifetime