| 摘要 |
<p>A bipartite lollipop is made by placing a spherical piece in the hollow of an annular piece, and pressing the annular piece to fix it to the spherical piece. The pressure is pref. axial and exerted while the annular piece is malleable. The spherical piece is pref. held while the annular piece is deformed so that it does not move off centre.</p> |
