焦虑
发表于 2025-3-26 22:45:15
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PANT
发表于 2025-3-27 02:48:46
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micronutrients
发表于 2025-3-27 06:08:37
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Glower
发表于 2025-3-27 11:42:33
Recirculation in Flow over Crump Weirs upstream section having a bed slope of 1:2 and the downstream section having a bed slope of 1:5. The upstream head is gauged in the conventional manner, using a piezometric tapping. The Crump weir is now widely used. Most of its hydraulic characteristics have been established by means of series of tests carried out at Hydraulics Research Ltd.
BULLY
发表于 2025-3-27 14:50:52
Johannes Schwarter” (Kamerlingh Onnes H, De beteekenis van nauwkeurige metingen bij zeer lage temperaturen. IJdo, Leiden, p 5, 1904). The Leiden-based cold pioneer Heike Kamerlingh Onnes used these words in his founder’s day speech in 1904, the year in which he served as rector of the University of Leiden. Polar exp
Cerebrovascular
发表于 2025-3-27 21:48:15
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