负荷: [电学] load; charge; weight 短语和例子安全负荷 safe load; 超负荷 overload; 容许负荷 the permissible load; 最大负荷 peak load; 测定各个轮胎负荷 (量) determine the full load on each tyre
效率: productiveness; efficiency; productivity; workpiece ratio 短语和例子效率低 inefficient; 效率高 efficient; 提高效率 promote efficiency; 效率首屈一指 second to none in efficiency; 投资效率 the efficiency of investme