在一级玻恩近似下,研究了在激光辅助的电子偶素反质子碰撞中的反氢合成.Antihydrogen formation in the laser - assisted positronium - an tiproton collision is investigated in the first Born approximation.在一级玻恩近似下,研究了在激光辅助的电子偶素反质子碰撞中的反氢合成.Antihydrogen formatio...
照顾孩子于她是一件不得空闲的苦差事。The way she did it, mothering was a full-time job.我和诺曼被委派去干这件苦差事.Norman and I were deputed for the unpleasant task.他有个苦差事,是要为全队物色食宿的处所.He got lumberedwith the job of finding accommodation for the whole ...