A A-weighted sound pressure level A声级(96) absolute humidity绝对湿度(2) absolute roughness绝对粗糙度(25) absorbate 吸收质(49) absorbent 吸收剂(49) absorbent吸声材料(100) absorber吸收器(85) absorptance for solar radiation太阳辐射热吸收系数(60) absorption equipment吸收装置(49) absorption of gas and vapour气体吸收(48) absorptiong refrige rationg cycle吸收式制冷循环(80) absorption-type refrigerating machine吸收式制冷机(84) access door检查门(55) acoustic absorptivity吸声系数(100) actual density真密度(44)