Objective To evaluate the control effects of twelve rich - d - trans allethrin coils and allethrin coils against mosquitoes.目的测试以富右旋反式烯丙菊酯和烯丙菊酯为有效成分不同品种盘香对淡色库蚊的防治效果.Disagreements among the twelve EC countries prevented t...
He underwent a lot of hardships in his childhood.他在童年时代经历了许多坎坷.She spoke with great seriousness of the hardships she had endured.她非常严肃地讲述了自己经历的苦难.After many hardships, he now lives in comparative ease.经过许多困难之后, 他现在的生活相对舒...
The river inundates the valley each spring.那一条河流每年春天使山谷泛滥.A flood occurs when overflows or inundates land that's normally dry.当水流过量或者淹没正常的土地时,洪水发生.The water - inrush from floor inundates Working face 51101 W in Lian...