The polymer film's hydrophile was test with contact angle machine.利接触测试仪该聚合膜性.No poison. no taste, pollution and inorganic metal, a chemical property stable, good hydrophile.为无毒、无味 、 无污染的无机非金属材料, 化学性质稳定, 具有良好的亲水性.Th...
His priceless collection of Chinese art and artefacts was garnered over three decades.他那批价值连城的中国艺术品和手工艺品是花了30多年才收集起来的。The artefacts have gone to Lima for safe keeping.文物被送到利马妥善保管.Ghosts and blurred area artefacts appear ...