The BOD test is essentially a bioassay procedure.BOD试验实际上是一项生物测定方法.The bioassay of freshwater sediment toxicity is described.描述了淡水沉积物毒性的生物测试方法.The field bioassay of 4 trunk injection insecticides ( 14 % Imidacloprid + DD...
Her untimely return could spoil Miss Melville's entire programme for the evening.她提前回来可能会破坏掉梅尔维尔小姐今晚的整个计划。His mother's untimely death had a catastrophic effect on him...他母亲的早逝给了他沉重的打击。...an untimely visit from ...