单词	可变压载设备
释义	可变压载设备variable ballast system
随便看	biological product assay biological product {biologicals} biological product deviation biological productivity biological products biological property biological protection biological psychiatrist biological psychiatry biological psychology biological psychology ； biopsychology biological pump biological pure biological purification biological pyramid biological quantity transducer biological race biological rad equivalent biological radiation biological radiation effects biological radiation tolerance biological reactor biological readiness biological reductionism biological removal of nitrogen