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Aqueduct in Ancient China
释义
Aqueduct in Ancient China
Encyclopedia
理学
古代渡槽
释
Aqueduct in Ancient China
古代渡槽
渡槽,又称过水桥,是渠道与河流、沟谷、洼地和道路等相交时而修建的建筑物,两端与渠道相接,普遍用于把远处的水引到水量不足的城镇、农村以供饮用或灌溉,也用于排洪、排沙等,大型渡槽还可通航。
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neutron radioassay instrument and equipment
neutron radiography
neutron reaction
neutron reflector
neutron-rich isotope
neutron rich nucleus
neutron-rich nucleus
neutron rich nuclide
neutron-rich nuclide
neutron scatter
neutron scattering
neutron scattering analysis
neutron scattering spin resonance
neutron separation energy
neutron skin
neutron skin nucleus
neutron slowing-down length
neutron slowing-down theory
neutron soil moisture gauge
neutron source
neutron spectrometer
neutron spectroscopy
neutron spectrum
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neutron threshold detector
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