By adopting equiscalar loading to determine the large pollution sources, and proposed the harness countermeasures.在此基础上,结合支流底质及非点污染源的实况, 提出了相应的防治对策....
It was just then that I chanced to look round.就在那时，我恰好环顾了下四周。I shivered and pulled my scarf more tightly round my neck.我打了个寒战，用围巾把脖子围得更紧了。He tramped hurriedly round the lake towards the garden.他匆匆地迈着沉重的步伐绕过湖边向花园走去。...