| 摘要 |
A device comprising: a sub-base having a first end, a second end, a top side (310), a left side, a right side and a width, a first (324), second (326), and third passageway (328) formed in the sub-base where the first, second, and third passageway run from the left side through to the right side; a first (446) and second opening (448) formed in the second end; a first, second, third, fourth and fifth slot (314, 316, 318, 320, 322) formed in a row in the top side of the sub-base where a long axis of the slots run from the right side towards the left side and where the first slot (314) couples to the first passageway (324), the third slot (318) couples to the second passageway (326), and the fifth slot (322) couples to the third passageway (328); a means for smoothly directing fluid flow from the second opening (448) to the second slot (316); a means for smoothly directing fluid flow from the first opening (446) to the fourth slot (320).
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