at the instance of英æt ðə 'ɪnstəns əv美æt ðə 'ɪnstəns əv短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 经…提议 In the case of point source continuous discharge for5 hours, the particles are discharged respectively at the instance of high tide and low tide. 点源连续排放5个小时的情况下,分别在高潮时刻和低潮时刻开始投放粒子; cnki