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effective opening |
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effective opening The minimum cross-sectional area of the opening at the point of water-supply discharge, expressed in terms of diameter of a circle; if the opening is not circular, the diameter of a circle of equivalent cross-sectional area is given. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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