Immutable collections, for defensive programming, constant collections, and improved efficiency.

不可变集合：防御性编程、不变集合、以及会提升性能。

youdao

The result were same. Contrasted with the common method, the new was easy to grasp and improved efficiency of solving questions.

对两种不同的方法进行比较，结果表明，标号法步骤明确、条理清晰、思路简单、易于掌握、解题快捷。

youdao

Every consumer only receives the data that it has interests, by doing so, it saved band width and the data searching time, and improved efficiency.

各个消费者只接收到自己感兴趣的数据，这样节省了带宽和各个消费者查找数据的时间，提高了效率。

youdao

In generation, lower procurement costs and improved efficiency levels compensated for 20% lower output, due in part to plant outages.

BBC: Iberdrola profits powered by strong UK performance

More people owning tablet computers this year and improved efficiency in the processes used to make such books might help change that soon.

FORBES: A Possible Digital Solution for Illustrated Book Publishers?

International agreements, new technologies and improved efficiency are all necessary to preserve the world's water supply, but effective water conservation and protection could require more profound changes.

CNN: flooded field