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﹝井孔声场中的波和声源﹞
释
monopole source
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向各个方向发出球对称的声场,产生的声压与距离成反比,与方向无关,与声源强度成正比。
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monopole source
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safeguarding of the palace
safe injection
safelight
safelight filter
safe liquid seal
safe low power critical experiment reactor
Safe Navigation at Sea for Non-propelled Ships Issued by the People's Republic of China
safe neighborhood
safener
safe net system
safe operating area
safe operating limit
safe operation in tank
safe operation of ships
safe period of even heading
safe production of fossil-fired power plant
safe production regulations of thermal power plant
safe refuge
safe reliability of flight control system
Saferite
safe shut down
safety
safety acceptance evaluation
safety access of road transport vehicle
safety accident handling
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