He cautioned us for playing in that busy street.他告诫我们不要在那条交通繁忙的路上玩.He cautioned that the Russia - American discussions were still in an exploratory stage.他警告说俄美会谈尚处于探索阶段.Citrus growers were cautioned to protect the fruit...
药效试验百菌清和波尔多液效果好,防效达90%以上,可作大面积防治选用药剂.Experiments showed Chlorothalonil and Bordeaux mixture were effective fortheir control.论述了在同一气相色谱条件下测定百菌清、腐霉利含量的方法.The analysis of chlorothalonil and procymidone by GC was introduced....