| 摘要 |
The applicator comprises a core presenting at least one helical furrow extending along at least one segment of the core from a first longitudinal end of the segment to a second longitudinal end of the segment. The core has a transverse dimension, measured away from the furrow, that varies on traveling along the segment in a longitudinal direction of the core. The core presents spines formed integrally therewith and situated on the segment outside the furrow.
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