| 摘要 |
A marker pen comprises a tubular housing (1) from one end of which protrudes a first fluid retaining (14) nib replenished by fluid such as an indicator ink present in a first chamber (8) positioned within the housing, and a second fluid retaining (25) nib which also protrudes from the aforesaid end of the housing and is replenished by fluid such as an eradicator fluid present in a second chamber (21) positioned within the housing. The protruding nibs are spaced one from the other.
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