词汇	preliminary concentration
释义	preliminary concentration 预选
随便看	emergency cutout emergency cut-out emergency cylinder emergency dam Emergency Data Network emergency DC power raising emergency DC power support emergency dealing emergency dealing and coordinative system emergency decelerating emergency decision emergency decision-making emergency decision-making knowledge supply emergency decision-making support emergency decision-making system emergency decision support system emergency declaration emergency decontamination emergency decontamination center emergency decontamination measures emergency decree Emergency Defence Plan Denmark emergency degree Emergency Deorbit System Emergency departments