Crystal oscillators are loosely divided because of the frequency they work at and whether or not they are elementary oscillators—operate in the frequency marked over the can or at even multiples of that (overtone oscillators). Substantial-repetition-level and large-power picosecond regenerative amplifier dependant on only one bulk Nd:GdVO4 crystal 中原子或分子的排列具有三维空间的周期... https://bookmarkquotes.com/story19052269/5-easy-facts-about-bulk-crystal-oscillator-described