| 摘要 |
<p>A mechanical arrangement for feeding fluid at a minute flow rate has a principal portion (3) formed with fluid feeding holes (181) (23) of size which allows them to be easily made therein, and fluid guide means (27) (28) inserted through the fluid feeding holes (18) (23) of said principal portion (3), wherein the difference between the opening areas of the fluid feeding holes (18) (23) and the sectional areas of the fluid guide means (27) (28) forms clearances (37) (35) which serve as fluid passages. <IMAGE></p> |
