1·The tasks had to be performed in a particular sequence.
这些任务必须按一定次序去执行。
—— 《牛津词典》
2·If not, then transformations have to be performed in the mapping phase.
如果没有，则在映射阶段必须执行转换。
3·Heat is released every time a logical operation is performed inside a microprocessor, so the faster the processor is, the more heat it generates.
微处理器每次在内部执行逻辑操作时都会释放热量，因此处理器运行得越快，产生的热量就越多。
4·The thought of holding a fixed grin as the camera performed its magical duties was too much to contemplate, and so a non-committal blank stare became the norm.
当摄像机在执行它的神奇的职责时，你就要保持露齿笑，这实在是太让人难以想象了，于是，一种坚定而茫然的凝视成了常态。
5·Monumentation may be performed at this stage.
埋石可能在这个阶段执行。