Sometimes expensive drugs or other treatments can be economical in the long run.
有时昂贵的药物或其他疗法从长远来看是省钱的。
Even so, LEDs can still be economical.
即便如此，LED依旧经济。
Packing should be economical as well as adequate.
包装应该既充分又经济。
Where coal is cheap, steam power may be economical.
煤便宜的地方，蒸汽动力就经济。
For be economical, he is hated to part with eat the meat.
为了省钱，他从来都舍不得吃肉。
The use of such a cell for waste water treatment would be economical.
这种电解槽用于废水处理时，经济上是可取的。
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。
If your pushful word is bought small, be economical, anyway I am to buy big, save worry.
如果你有精力的话就买小的，省钱，反正我是买大的，省心。
Among these methods, alkali treatment is proved to be economical, simple, and effective.
在这些方法，碱处理的证明是经济，简单，有效。
With the watch, you may be economical of your time. And then you will have the best achievements on the day.
有了表，你可以经济地使用你的时间，而且在那天会有最好的成就。
Shopping on the Internet can be economical, convenient, and no less safe than shopping in a store or by mail.
网上购物实惠，方便，安全性并不比商场购物或邮购低。
That could help address a major impediment to wide adoption of such technologies: They need heavy subsidies to be economical.
这可能有助于解决大规模采用这种技术的一个主要障碍：它们要想在经济上合算的话需要高额的补贴。
With a sincere heart to be economical, low carbon efficient type procucts to each customer, to create value for customers;
以真诚心将经济节约型、低碳高效型的产品带给每个客户，为客户创造价值；
Actuators are expected to perform reliability, but must be economical, and easy to repair or replace when there are problems.
执行机构将执行的可靠性，但必须是经济，并容易修理或更换有问题的时候。
While basic blocks may be economical, architectural blocks add designer touches and colors-for just a few cents more per block.
虽然基本块可以经济，建筑块只需添加更多的每块几美分的设计和颜色触及。
Firstly, it provides the students a chance to realize that money is always earned in a hard way so that they'll learn to be economical.
首先，它为学生提供一个机会来意识到钱总是难的，他们才会学会节俭。
We shall believe in the nature's immune ability, not to disturb it and let it cure by itself, this way can be economical and save Labour.
要相信大自然的自身免疫能力，不去干扰它，它自己就痊愈了，又省钱又省力。
With conventional techniques, oil prices have to be above $50 to $60 per barrel—as they have been for several years—for oil sands to be economical.
如果使用传统的技术开采油砂资源而且要划算的话，其油价将会是在每桶50美元到60美元以上，其实过去这些年都是这个价。
Gives a present delivers both must be beautiful, and must be natural, must be economical, also the visitor likes very much product must belong to he!
送礼送既要美丽，又要大方，又要经济实惠，客人又很喜欢的产品就非他莫属了！
Moreover, the bandwidth is a very limited and precious resource. And the low code rate speech codes is one of the important methods to be economical bandwidth.
信道带宽是非常有限和宝贵的资源，而低码率语音编码技术是节省带宽的重要方法之一。
The trial-product of an example gear processed indicates digitalization-precision and the process program could meet the need of manufacture and be economical and feasible.
经试制加工实例齿轮表明，齿形数字化精度和数控加工程序满足生产要求，且经济可行。
It is recommended that the structure and principium of a new type of water cut-off protection device which is simple and reliable. It is proved to be economical and reliable in practice.
介绍一种简单可靠的空压机断水保护装置的结构原理及使用效果，使用表明该装置经济实用，性能可靠。
For ensuring the mining production to be economical, continuous and in a state of equilibrium, one of the necessary steps to be taken is to account, determine, and balance the workable ore reserves.
各级矿量的计算与确定以及其间的平衡是保证矿山经济合理地持续、均衡生产的必要条件之一。
The consistency between the numerical and experimental results proves the proposed method to be economical and effective to predict the casting deformation and finally optimize the foundry technology.
计算结果与实验结果一致，为预测铸件变形、优化铸造工艺提供了经济、有效的方法。
It would be more economical to buy the bigger size.
买尺寸大点的更实惠。
It should become smaller, safer, and more economical, and should not be powered by the gasoline engine.
它应该变得更小、更安全、更节油，而且不应该由汽油发动机驱动。
It should become smaller, safer, and more economical, and should not be powered by the gasoline engine.
它应该变得更小、更安全、更节油，而且不应该由汽油发动机驱动。
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