迈克尔狠狠地瞪了他一眼然后走开了。Michael gave him a dirty look and walked out.持枪歹徒不慌不忙地走开，坐上一辆等候的汽车逃走了。The gunmen calmly walked away and escaped in a waiting car.他走开去把湿衬衫拧干。He turned away to wring out the wet shirt....
介绍了缩二脲在 工农业 上的应用及其合成工艺.In this article the application of biuret in industry & agriculture and its synthetic process are stated.自制的缩二脲产品与羟基丙烯酸树脂所配成的漆具有优良的性能.The paint compounded with the product and hydroxyl acrylic resi...