power box机力卸载车厢powern.力量；力；能力；权力；【数】幂；电力v.使有力量；给 ... 提供动力adj.电力的；力量的；权力的power traction tamper动力牵引式打夯机power supply computer供电用计算机power generation part发电部分Power Mean Inequality幂平均不等式power steering system动力转向系统Power-condylus Bolt动力髁螺钉Power Generation Unit动力生成装置power-operated unit动力操纵部件power station project电站工程powergxid enterprises电网企业

1. In consideration of the directivity and acoustic power, the input voltage distribution of a loudspeaker array can be optimized and selected.
   运用该方法可以优化扬声器阵列的输入电压分布，获得指向性和声功率级二者兼顾的扬声器阵列。
2. The valve is driven directly by a large strake multilayer piezoelectric stack, its displacement actuates the power cascade spool after amplification by a lever mechanism.
   该阀采用大行程的压电叠堆作为驱动元件，经杠杆放大后的位移直接驱动功率级滑阀。