I get very nervous because I'm using a lot of expensive equipment.因为正在使用很多昂贵的设备，所以我非常紧张。Mr Morris feels the museum is using advertising to good effect.莫里斯先生认为博物馆作的广告卓有成效。I removed the fibroid tumours, using the tech...
Using vacuum adsorb style fix up paper.固定纸张方式采用真空吸附方式.The cobalt oxide is produced from cobalt catalyst waste by using acidolysis precipitate method.用含钴催化剂废料作原料,采用酸溶-沉淀法工艺制取氧化钴.The Afghan air force was using helicopters ...