Eisenhower was intensely aware of the need for long-range planning.艾森豪威尔深谙长远规划的必要性。The long-range goal must be to do away with nuclear weapons altogether.远期目标必须是将核武器尽数销毁。a long-range weather forecast远期天气预报...
她在里约居住了10年之后迁居到里斯本去了.After dwelling in Rio for ten years, she moved to Lisbon.他奉派出任里斯本大使.He was accredited ambassador to Lisbon.由于旅游业的严重滑坡,里斯本的外汇收入大受影响.Lisbon's foreign earnings have been badly hurt by the drastic d...
化合物庚烷的主要用途是作为双基推进剂的增塑剂.The heptane compound has a primary purpose as a plasticizer for doublebase propellant systems.正庚烷异构化的难点在于高选择性地生成多侧链异庚烷和抑制异庚烷的裂化反应.However, it is difficult to produce multi branched i heptane and re...