Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现.The laxity of export control authorities has made a significant contribution to the problem.出口控制部门工作懈怠，是造成此问题的重要原因。There were no significant differe...
Dibenzofuran ( DF ) is one of the model compounds for the study of biodegradation of dioxin - like pollutants.二苯并呋喃 ( DF ) 是研究二英类化合物生物降解的模式化合物之一.The experimental results show that the biodegradation of dinoseb is the mor...
A vicious price war between manufacturers has cut margins to the bone.制造商之间的恶性价格战已将利润削减到了最低。You can individualize a document by adding comments in the margins.你可以在页边空白处添加评论使文件变得富有个性。They have always had to make do with r...
Some of them are like setting a trap ( with obstructions ).有些像是设的陷阱 ( 有障碍物 ).Ruler shows the distance in meters to nearest obstructions.标尺显示到最近的阻碍的距离,以米为单位.They went ahead of us to clear the road of obstructions.他们走在我们前面...