能源: the sources of energy; energ ...的: 4次方是 The fourth power of 2 i ...二次: secondary; quadratic利用: use; utilize; make use of二次利用: reutilization利用能源的设备: energy-harnessing equipment能源的合理利用: rational use of energy两次利用，再生: revive v. come back into use or existence再次利用率: re-use factor更有效利用能源的新出路: thermal storage――the better way of using the energy能源的: of energy次利: tsugitoshi节省能源的: energy-saving节约能源的: energy conserving; energy-conserving; energy-saving能源的计量: energy measurement: units and conversion factors资源的利用: utilization of resources面积的二次矩: second moment of area位的二次微商: second derivative of the potential二次的二次曲面的: quadric利用能源: utilize energy能源利用: energy use; energy utilization; using energy; utilization for energy supply; utilization of energy能源利用率: energy utilization rate能源利用者: energy users二次能源: primary energy; secondary energy sources; second energy; secondhand energy; sekundre energie影片的二次压制: secondary pressmaking
