四级推进船用发动机额定值说明
four-level marine propulsion engine rating definition
收话人回音响度额定值
LELR Listener Echo Loudness Rating
连续稳态电流额定值
continuous steady-state current rating
空-空后冷载重车发动机额定值
ataac truck engine rating
绝对最大额定值
absolute maximum rating
absolute disintegration rate
absolute machine code
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