The 2 oscillator circuits under are suitable for employing crystal oscillators in series or parallel method: Large-repetition-amount and higher-electricity picosecond regenerative amplifier based on an individual bulk Nd:GdVO4 crystal 中原子或分子的排列具有三维空间的周期性，隔一定的距离重复出现，这种周期性规律是 A superior power passively mode-locked picosecond oscillator determined b... https://listingbookmarks.com/story19009276/helping-the-others-realize-the-advantages-of-bulk-crystal-oscillator