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- Where coal is cheap, steam power may be economical. 煤便宜的地方，蒸汽动力就经济。
- Where coal is cheap,steam power may be economical. 煤便宜的地方，蒸汽动力就经济实惠。
- We must be economical with our time. 我们必须节约时间。
- You must be economical of your money and time. （你必需节省你的金钱和时间。）
- We should be economical of our money and time. 我们应该节省金钱和时间。
- When we had done the costings on the project, it was clear it would not be economical to go ahead with it. 我们计算了成本，清楚表明这项工程不合算。
- Only by using availing machinery can it be economical of time and energy. 只有使用了得力的机器,才能省时省力。
- He was economical in all areas of his life. 他在生活的各个方面都精打细算。
- The chief gains would be economic. 最主要的好处还是在经济方面。
- The cruise condition must also be economical and adequate for the aircraft mission. 巡航状态也必须是经济的以及能够适应飞机的飞行任务。
- The right honourable gentleman is being economical with truth. 这位议员朋友只是对真理较为吝惜而已。
- It could, for example, be economic sanctions or blockades. 它可以, 举例来说,是经济制裁或阻塞。
- To be economical these processes will require efficient solvent recovery operations. 若要经济，就要有有效的溶剂回收工序。
- Both planning and marketing are economic means. 计划和市场都是经济手段。
- Articles of everyday use are economically priced. 日用品价格低廉。
- I do not need nor can I afford to buy it all at once and the shipping for small amounts would not be economical. 我买不起也没必要去买,对金额量少的装运也不是节约的办法。
- The teachers' demands were economically unfeasible. 教师们的要求在经济上是不可行的。
- Far more fundamental are economic forces. 更加重要的是经济力量。
- His major in college was economics. 他上大学时主修经济学专业。
- My major was Economics and Trade. 我主修的是经济与贸易.
