主动: initiative参与: partake; participate in; hav ...劳动参与率: labor participation rate社会运动参与者: activists主动段末端运动参数: burnout conditions参与: partakeparticipate inhave a hand inparticipationinvolvement主动: 1.(能够造成有利局面) initiative 主动作某事 do sth. on one's own initiative; do sth. of one's own accord; 争取主动 try to gain the initiative; contend for the initiative; 主动为人们做好事 be active in doing good to men; 主动求婚[爱尔兰] take the initiative in courtship; 她不愿意主动这么做。 she does not like to do so from her own initiative. 他工作很主动。 he displays great initiative in his work.2.[机械工程] driving; 主动报价 unsolicited offers; 主动导航 active homing; 主动舵 active rudder; main rudder; 主动滑轮 driving pulley; feed pulley; 主动皮带轮 drive pulley; 主动注意 [心] active attention动参考系: moving reference system流动参量: flow parameter流动参数: flow parameters扰动参数: excitation parameter; perturbation parameter摄动参数: perturbation parameter行动参数: action parameter移动参考线: move guide游动参数: running parameter运动参数: movement parameters; parameter of motion自动参加: participate voluntarily地面运动参数: ground-motion parameter动参考坐标系: moving reference coordinate system更多驱动参数: more drive parameters滑动参数起动: slide parameter starting临界流动参数: critical parameter of flow流动参数测量: flow parameter measurement目标运动参数: target motion parameters; target motion rates射弹运动参数: motion parameters of projectile