的: 4次方是 The fourth power of 2 i ...三级: three-level; Fully Good系统: systemsft系统容错: system fault tolerance系统容错: sft; system fault tolerance系统容错技术: sft system fault tolerance系统容积: volumetric content of system系统容量: capacity of systems; system capacity总系统容量: total system capacitydna的三级结构: tertiary structure of dna海缆系统容量: submarine cable capacity冷却系统容量: cooling system capacity润滑系统容量: lubrication system capacity运煤系统容量: capaoity of coal handling system超级系统: supersystem初级系统: entry-level system串级系统: cascade system次级系统: subsystem单级系统: single level system; single stage system; single-level system等级系统: cast system多级系统: multilevel system多能级系统: multilevel system二能级系统: two level system; two-level energy system分级系统: hierarchy system可降级系统: degradable system