首先是循环展开(loop unrolling)，它是这样一种技术：复制循环的每次迭代所调用的指令以构成一个序列。

The first is loop unrolling, a technique where the instructions called in each iteration of the loop are replicated to form a single sequence.

youdao

它使用的是与清单1中迭代html组件文件的相同方法，并添加需要的指令来访问字典。

It USES the same method of iterating through the HTML component files as in Listing 1 and adds the required instructions to access the dictionaries.

youdao

软件流水是一种开发循环程序指令级并行性的技术，它通过并行执行连续的多个迭代来加快循环的执行速度。

Software pipelining is a loop scheduling technique which extracts instruction level parallelism by overlapping the execution of several consecutive iterations.

youdao