system clock reference造句

例句与造句

1. "' System Clock Reference "'( SCR ) is a timing value stored in a 33-bit header of each PES, at a frequency / precision of 90 kHz, with an extra 9-bit extension that stores additional timing data with a precision of 27 MHz.
2. It's difficult to find system clock reference in a sentence. 用system clock reference造句挺难的