有危险
发表于 2025-3-27 00:25:52
Macmillan Publishers Limited 1996
defile
发表于 2025-3-27 01:19:57
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神化怪物
发表于 2025-3-27 06:23:35
Natural and Mechanical Ventilation,t volume) of the rising column of hot air is less than that of the falling column of cold air. This process in its continuously operating mode is encountered in any naturally vented enclosure and also in any chimney that is functioning properly. It is referred to as the ‘stack effect’.
门窗的侧柱
发表于 2025-3-27 11:24:38
Air Conditioning, the amount of water vapour which can be ‘carried’ or ‘supported’. It is found that warm air can support more water vapour than cold air and whereas warming air is a simple process, cooling it is more complicated, requiring the use of special-purpose plant. The warming or cooling of air is usually c
手榴弹
发表于 2025-3-27 14:54:55
Release and Absorption of Energy,er is one in which the air for combustion is naturally aspirated and the pressure inside the boiler combustion chamber is just below atmospheric. The inclusion of a draught diverter in the flueway just above the boiler ensures that any change in the draught pressure which may occur will not material
水獭
发表于 2025-3-27 19:59:36
Electrical Energy,ion contained in the following statement: ‘when electromagnetic fields, such as those emanating from the opposite poles of a bar magnet, are moved by means of a force (acting at any angle), across an electrical conductor, an electromotive force (emf) is set up across the ends of the conductor’. Join
吸引人的花招
发表于 2025-3-28 00:10:58
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Asymptomatic
发表于 2025-3-28 03:57:41
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CLASH
发表于 2025-3-28 09:26:22
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钝剑
发表于 2025-3-28 10:25:07
9楼