求翻译：送风口为方形散流器，用假定流速法对风管进行了设计及水力计算；冷热源设计在商场的地下负一层，选择离心式机组，再选用冷却塔及空调机组辅助设备，并对冷却水系统水泵选择作了估算；对风道减震作了简要的说明。是什么意思？

Outlet diffuser for the square duct design and hydraulic calculations assume that the flow rate; cold and heat source in the mall's underground negative layer, select the centrifugal unit, and then choose the cooling tower and air-conditioning units, auxiliary equipment, and Cooling Water System Sel

The air inlet square heat flow, assuming that the flow of the air tube in the design and hydraulic calculations; cold heat design for the shopping center, ground floor of a layer, select centrifugal units, cooling towers and no longer use air conditioning units and auxiliary equipment, and pumps for

The supply-air outlet drifts for the square shape, has carried on the design and the water power computation with the hypothesis speed of flow law to the air hose; The cold heat source design in market underground -1, the choice centrifugal type unit, selects the cooling tower and the air conditioni

Air outlet for square diffusers, assuming that velocity in hydraulic calculation and design of air duct by; underground layer of cold heat source design in shopping centres, selecting centrifugal chiller, selection of cooling towers and air conditioning unit auxiliary equipment, and estimation of th

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