| 摘要 |
The structure of the capillary head section is made such that the liquid contacting surfaces of the capillary holder, capillary, and adhesive are all the same plane, and this shared liquid contacting surface is made a mirror surface with a surface roughness of 3.2 s or less. In the shared liquid contacting surface, the ratio of the total area of the capillaries in the internal diameter area of the capillary holder is made 60 to 73%.
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