tip side造句

The pens have multiple tips side by side, and water-based ink is led into them along threads.
The various levels provided various tones, and ringing current of various durations and cadences ( especially valuable for tip side or ring side.
On the same subscriber line, one party used the tip side of the line and ground for ringing, whilst the other party on the same line used the ring wire and ground for ringing, to achieve full selectivity for two-party lines, in which only the selected station would ring.
It's difficult to find tip side in a sentence. 用tip side造句挺难的