Diplomats can be a notoriously unreliable and misleading source of information.外交官可能会提供一些靠不住的误导性信息，这是众所周知的。He had an unreliable car.他有辆性能不稳定的车。His judgement was unreliable.他的判断不可靠。...
A two - step process has been developed to recover cobalt from arsenite ores.为了从亚砷酸盐矿中回收钴,开发了二段工艺.The absorption reactions of goethite and its precursors on arsenite were studied.观察了针铁矿及其前体对溶液中亚砷酸根离子的吸附过程和吸附性能.Copper ars...
He personally had received orders from Commander Lehmann to scuttle the ship.他个人已收到莱曼司令要求凿沉轮船的命令。Chris Lehmann is principal of the Science Leadership Academy in Philadelphia, Pennsylvania.克里斯.莱曼是宾夕法尼亚州费城科学领导学院的校长.Strange...