Stroll down Narodni to pick up the pulse of Prague and then pause beside the theatre.
沿着娜罗蒂街漫步感受一下布拉格跳动的脉搏，然后来到大剧院边上小憩。
2
The precision of measure can be advanced by making use of over-sampling and lock-in amplifying on the pick-up of photoelectric pulse wave in DS detection.